Mathway | Problèmes fréquents

Problèmes fréquents

Rang	Matière	Problème	Problème de formatage
2801	Resolva para x	5^(x-2)=4^(2x+3)	$5^{x - 2} = 4^{2 x + 3}$
2802	Resolva para x	5^(x-3)=25	$5^{x - 3} = 25$
2803	Resolva para x	5^(x+2)=7^(x-2)	$5^{x + 2} = 7^{x - 2}$
2804	Resolva para x	5^(7x)=4.3	$5^{7 x} = 4.3$
2805	Resolva para x	5^x+125(5^(-x))=30	$5^{x} + 125 (5^{- x}) = 30$
2806	Resolva para x	5^(3x)=625	$5^{3 x} = 625$
2807	Resolva para x	5^(3x+1)=125	$5^{3 x + 1} = 125$
2808	Resolva para x	5^(2x)+5^x-6=0	$5^{2 x} + 5^{x} - 6 = 0$
2809	Resolva para x	4^(x+2)=16^(3x-1)	$4^{x + 2} = 16^{3 x - 1}$
2810	Resolva para x	4^(x+6)=5	$4^{x + 6} = 5$
2811	Resolva para x	4^(x+7)=8^(x+3)	$4^{x + 7} = 8^{x + 3}$
2812	Resolva para x	4^x(1/2)^(3-2x)=8(2^x)^2	$4^{x} \cdot {(\frac{1}{2})}^{3 - 2 x} = 8 \cdot {(2^{x})}^{2}$
2813	Resolva para x	4^x=1/256	$4^{x} = \frac{1}{256}$
2814	Resolva para x	4^(3x-7)=32^(2x)	$4^{3 x - 7} = 32^{2 x}$
2815	Resolva para x	4^(5x)=16^(2x-1)	$4^{5 x} = 16^{2 x - 1}$
2816	Resolva para x	5/(x-5)-13/(x^2-5x)=2	$\frac{5}{x - 5} - \frac{13}{x^{2} - 5 x} = 2$
2817	Resolva para x	5^(9-3x)=125	$5^{9 - 3 x} = 125$
2818	Resolva para x	5^(-x/100)=2	$5^{- \frac{x}{100}} = 2$
2819	Resolva para x	4^(12-4x)=256	$4^{12 - 4 x} = 256$
2820	Resolva para x	4/(x-1)+2/(x+1)=35/(x^2-1)	$\frac{4}{x - 1} + \frac{2}{x + 1} = \frac{35}{x^{2} - 1}$
2821	Resolva para x	4^(1-2x)=2	$4^{1 - 2 x} = 2$
2822	Resolva para x	4^(1-8x)=5^x	$4^{1 - 8 x} = 5^{x}$
2823	Resolva para x	3^(x+3)=27^(x-2)	$3^{x + 3} = 27^{x - 2}$
2824	Resolva para x	3^(x-1)=1/81	$3^{x - 1} = \frac{1}{81}$
2825	Resolva para x	3^(5x+1)=9	$3^{5 x + 1} = 9$
2826	Resolva para x	3^(x+4)=2^(1-3x)	$3^{x + 4} = 2^{1 - 3 x}$
2827	Resolva para x	3^(3x+1)=9	$3^{3 x + 1} = 9$
2828	Resolva para x	3^(4-x)=27^x	$3^{4 - x} = 27^{x}$
2829	Resolva para x	3^(5x+6)=81^(2x+3)	$3^{5 x + 6} = 81^{2 x + 3}$
2830	Resolva para x	3^(1-2x)=5^(x+5)	$3^{1 - 2 x} = 5^{x + 5}$
2831	Resolva para x	3/(x-4)=1+5/(x+4)	$\frac{3}{x - 4} = 1 + \frac{5}{x + 4}$
2832	Resolva para x	6^(2x)+6^x-30=0	$6^{2 x} + 6^{x} - 30 = 0$
2833	Resolva para x	6^x=28	$6^{x} = 28$
2834	Resolva para x	6^(x-2)=5^(2x+3)	$6^{x - 2} = 5^{2 x + 3}$
2835	Resolva para x	60/(1+e^(-x))=4	$\frac{60}{1 + e^{- x}} = 4$
2836	Resolva para x	(7x^2)/8=2(x-1)	$\frac{7 x^{2}}{8} = 2 (x - 1)$
2837	Resolva para x	7/(2-x)=(10-4x)/(x^2+3x-10)	$\frac{7}{2 - x} = \frac{10 - 4 x}{x^{2} + 3 x - 10}$
2838	Resolva para x	(7x)/(x-7)-4/x=28/(x^2-7x)	$\frac{7 x}{x - 7} - \frac{4}{x} = \frac{28}{x^{2} - 7 x}$
2839	Resolva para x	8^(x+1)=16	$8^{x + 1} = 16$
2840	Resolva para x	9^(2x)=27^(3x-4)	$9^{2 x} = 27^{3 x - 4}$
2841	Resolva para x	8^(6+3x)=4^(x+1)	$8^{6 + 3 x} = 4^{x + 1}$
2842	Resolva para x	9^x-3^x=0	$9^{x} - 3^{x} = 0$
2843	Resolva para x	9^x-3^(x+1)+1=0	$9^{x} - 3^{x + 1} + 1 = 0$
2844	Resolva para x	9^(4x-1)=27	$9^{4 x - 1} = 27$
2845	Resolva para x	\|x+6\|=\|x-5\|	$\| x + 6 \| = \| x - 5 \|$
2846	Resolva para x	9^(x+2)=27^(-x)	$9^{x + 2} = 27^{- x}$
2847	Resolva para x	e^(2x)-e^x-2=0	$e^{2 x} - e^{x} - 2 = 0$
2848	Resolva para x	e^(1-4x)=2	$e^{1 - 4 x} = 2$
2849	Resolva para x	e^(2x)+e^x-12=0	$e^{2 x} + e^{x} - 12 = 0$
2850	Resolva para x	e^(2x)+4e^x-12=0	$e^{2 x} + 4 e^{x} - 12 = 0$
2851	Resolva para x	e^(-2x)=1/3	$e^{- 2 x} = \frac{1}{3}$
2852	Resolva para x	e^(2x+5)=8	$e^{2 x + 5} = 8$
2853	Resolva para x	e^(2x)-9e^x+14=0	$e^{2 x} - 9 e^{x} + 14 = 0$
2854	Resolva para x	e^(2x)-4e^x=5	$e^{2 x} - 4 e^{x} = 5$
2855	Resolva para x	e^(2x)-3e^x-4=0	$e^{2 x} - 3 e^{x} - 4 = 0$
2856	Resolva para x	e^(2x)-2e^x-8=0	$e^{2 x} - 2 e^{x} - 8 = 0$
2857	Resolva para x	e^(2x)+9e^x+36=0	$e^{2 x} + 9 e^{x} + 36 = 0$
2858	Resolva para x	e^(-2x)=8	$e^{- 2 x} = 8$
2859	Resolva para x	(ax+b)/(cx+d)=11	$\frac{a x + b}{c x + d} = 11$
2860	Resolva para x	a^2x+(a-1)=(a+1)x	$a^{2} x + (a - 1) = (a + 1) x$
2861	Resolva para x	e^(6x-1)=(e^2)^(-x)	$e^{6 x - 1} = {(e^{2})}^{- x}$
2862	Resolva para x	e^(4x)-3e^(2x)-18=0	$e^{4 x} - 3 e^{2 x} - 18 = 0$
2863	Resolva para x	e^(4x)+4e^(2x)-32=0	$e^{4 x} + 4 e^{2 x} - 32 = 0$
2864	Resolva para x	e^(4x)+5e^(2x)-24=0	$e^{4 x} + 5 e^{2 x} - 24 = 0$
2865	Resolva para x	e^(2x-1)=(e^3)^(-x)	$e^{2 x - 1} = {(e^{3})}^{- x}$
2866	Resolva para x	e^(3x)=10	$e^{3 x} = 10$
2867	Resolva para x	e^(-3x)=9	$e^{- 3 x} = 9$
2868	Resolva para x	e^x-9+20e^(-x)=0	$e^{x} - 9 + 20 e^{- x} = 0$
2869	Resolva para x	e^x=20.6	$e^{x} = 20.6$
2870	Resolva para x	e^x=22	$e^{x} = 22$
2871	Resolva para x	e^(-x)=2 logarithme népérien de x	$e^{- x} = 2 \ln (x)$
2872	Resolva para x	e^x=3.7	$e^{x} = 3.7$
2873	Resolva para x	e^x+5=60	$e^{x} + 5 = 60$
2874	Resolva para x	sin(x)^2-sin(x)-2=0	$\sin^{2} (x) - \sin (x) - 2 = 0$
2875	Resolva para x	tan(x)^2=4	$\tan^{2} (x) = 4$
2876	Resolva para x	tan(x)^3=tan(x)	$\tan^{3} (x) = \tan (x)$
2877	Resolva para x	racine carrée de 2cos(2x)+1=0	$\sqrt{2} \cos (2 x) + 1 = 0$
2878	Resolva para x	racine carrée de 18x-9=x+4	$\sqrt{18 x - 9} = x + 4$
2879	Resolva para x	tan(x)^2-tan(x)=0	$\tan^{2} (x) - \tan (x) = 0$
2880	Resolva para x	racine carrée de 2x+7-x=2	$\sqrt{2 x + 7} - x = 2$
2881	Resolva para x	racine carrée de x+ racine carrée de x-20=10	$\sqrt{x} + \sqrt{x - 20} = 10$
2882	Resolva para x	x^2=4x	$x^{2} = 4 x$
2883	Resolva para x	racine carrée de 3tan(x)-1=0	$\sqrt{3} \tan (x) - 1 = 0$
2884	Resolva para x	base logarithmique x de 8=0.5	$\log_{x} (8) = 0.5$
2885	Resolva para x	base logarithmique x de 8=2	$\log_{x} (8) = 2$
2886	Resolva para x	base logarithmique x de 729=3	$\log_{x} (729) = 3$
2887	Resolva para x	base logarithmique x de 729=3/2	$\log_{x} (729) = \frac{3}{2}$
2888	Resolva para x	base logarithmique x de 3=1/2	$\log_{x} (3) = \frac{1}{2}$
2889	Resolva para x	base logarithmique 9 de x+6+ base logarithmique 9 de x+3=2	$\log_{9} (x + 6) + \log_{9} (x + 3) = 2$
2890	Resolva para x	base logarithmique 81 de x+ base logarithmique 9 de x+ base logarithmique 3 de x=14	$\log_{81} (x) + \log_{9} (x) + \log_{3} (x) = 14$
2891	Resolva para x	base logarithmique x de 1/64=-3/2	$\log_{x} (\frac{1}{64}) = - \frac{3}{2}$
2892	Resolva para x	base logarithmique x de 1/27=3	$\log_{x} (\frac{1}{27}) = 3$
2893	Resolva para x	base logarithmique 64 de x+ base logarithmique 8 de x+ base logarithmique 2 de x=9	$\log_{64} (x) + \log_{8} (x) + \log_{2} (x) = 9$
2894	Resolva para x	base logarithmique 7 de x=5	$\log_{7} (x) = 5$
2895	Resolva para x	base logarithmique 8 de x+ base logarithmique 8 de x-3=2/3	$\log_{8} (x) + \log_{8} (x - 3) = \frac{2}{3}$
2896	Resolva para x	base logarithmique 8 de x=4/3	$\log_{8} (x) = \frac{4}{3}$
2897	Resolva para x	base logarithmique 8 de x+6=1- base logarithmique 8 de x+4	$\log_{8} (x + 6) = 1 - \log_{8} (x + 4)$
2898	Resolva para x	racine carrée de 2 racine carrée de x+2 = racine carrée de x+2	$\sqrt{2 \sqrt{x + 2}} = \sqrt{x + 2}$
2899	Resolva para x	base logarithmique 7 de x+2=-2	$\log_{7} (x + 2) = - 2$
2900	Resolva para x	base logarithmique 8 de x=3	$\log_{8} (x) = 3$