Question

Multiply (-8x - 9)(-9x2 + 7x - 9).

Answer 1

= (-8x - 9)(-9x2 + 7x - 9)

= 72x³ - 56x² + 72x + 81x² - 63x + 81

= 72x³ + 25x² + 9x + 81

In short, Your Answer would be: Option D

Hope this helps!

Answer 2

(-8x - 9)(-9x2 + 7x - 9)

= 72x^3 - 56x^2 + 72x + 81x^2 -63x +81

= 72x3 + 25x2 + 9x + 81 

so ans is D