Basic Math Examples

$(9 a^{4} + 2 a^{3} - 5) - (7 a^{2} - 6 a + 8)$

Step 1

Simplify each term.

Tap for more steps...

Step 1.1

Apply the distributive property.

$9 a^{4} + 2 a^{3} - 5 - (7 a^{2}) - (- 6 a) - 1 \cdot 8$

Step 1.2

Simplify.

Tap for more steps...

Step 1.2.1

Multiply $7$ by $- 1$ .

$9 a^{4} + 2 a^{3} - 5 - 7 a^{2} - (- 6 a) - 1 \cdot 8$

Step 1.2.2

Multiply $- 6$ by $- 1$ .

$9 a^{4} + 2 a^{3} - 5 - 7 a^{2} + 6 a - 1 \cdot 8$

Step 1.2.3

Multiply $- 1$ by $8$ .

$9 a^{4} + 2 a^{3} - 5 - 7 a^{2} + 6 a - 8$

Step 2

Subtract $8$ from $- 5$ .

$9 a^{4} + 2 a^{3} - 7 a^{2} + 6 a - 13$