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Basic Math Examples
80.99-81√80.99-980.99−81√80.99−9
Step 1
Subtract 8181 from 80.9980.99.
-0.01√80.99-9−0.01√80.99−9
Step 2
Move the negative in front of the fraction.
-0.01√80.99-9−0.01√80.99−9
Step 3
Multiply 0.01√80.99-90.01√80.99−9 by √80.99+9√80.99+9√80.99+9√80.99+9.
-(0.01√80.99-9⋅√80.99+9√80.99+9)−(0.01√80.99−9⋅√80.99+9√80.99+9)
Step 4
Multiply 0.01√80.99-90.01√80.99−9 by √80.99+9√80.99+9√80.99+9√80.99+9.
-0.01(√80.99+9)(√80.99-9)(√80.99+9)−0.01(√80.99+9)(√80.99−9)(√80.99+9)
Step 5
Expand the denominator using the FOIL method.
-0.01(√80.99+9)√80.992+√80.99⋅9-9√80.99-81−0.01(√80.99+9)√80.992+√80.99⋅9−9√80.99−81
Step 6
Simplify.
-0.01(√80.99+9)-0.01−0.01(√80.99+9)−0.01
Step 7
Step 7.1
Rewrite 0.010.01 as -1(-0.01)−1(−0.01).
--1(-0.01)(√80.99+9)-0.01−−1(−0.01)(√80.99+9)−0.01
Step 7.2
Cancel the common factor.
--1⋅-0.01(√80.99+9)-0.01
Step 7.3
Divide -(√80.99+9) by 1.
--(√80.99+9)
--(√80.99+9)
Step 8
Apply the distributive property.
-(-√80.99-1⋅9)
Step 9
Multiply -1 by 9.
-(-√80.99-9)
Step 10
Apply the distributive property.
--√80.99--9
Step 11
Step 11.1
Multiply -1 by -1.
1√80.99--9
Step 11.2
Multiply √80.99 by 1.
√80.99--9
√80.99--9
Step 12
Multiply -1 by -9.
√80.99+9
Step 13
The result can be shown in multiple forms.
Exact Form:
√80.99+9
Decimal Form:
17.99944442…