3 years ago

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

2 answers:

3 0

= (-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!

meriva3 years ago

3 0

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

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

= 72x3 + 25x2 + 9x + 81

so ans is D

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Allushta [10]

Answer:

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Step-by-step explanation:

Hi there!

$(4x - 5)-(6x + 8)$

Open up the parentheses

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Combine like terms

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I hope this helps!

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3 years ago

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