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kiruha [24]
3 years ago
7

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

Mathematics
2 answers:
Misha Larkins [42]3 years ago
3 0
= <span>(-8x - 9)(-9x2 + 7x - 9)

= 72x</span>³ - 56x² + 72x + 81x² - 63x + 81

= 72x³ + 25x² + 9x + 81

In short, Your Answer would be: Option D

Hope this helps!
meriva3 years ago
3 0
<span>(-8x - 9)(-9x2 + 7x - 9)

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

= </span><span>72x3 + 25x2 + 9x + 81 

so ans is D</span>
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