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3 years ago

Simplify the given expression. –10xy(4xy3 – 7xy + 9y2)

Mathematics

1 answer:

Drupady [299]3 years ago

6 0

Answer:

$\large\boxed{-40x^2y^4+70x^2y^2-90xy^3}$

Step-by-step explanation:

Use the distributive property <em>a(b + c) = ab + ac</em>:

$-10xy(4xy^3-7xy+9y^2)\\\\=(-10xy)(4xy^3)+(-10xy)(-7xy)+(-10xy)(9y^2)\\\\\text{use}\ a^na^m=a^{n+m}\\\\=-40x^{1+1}y^{1+3}+70x^{1+1}y^{1+1}-90xy^{1+2}\\\\=-40x^2y^4+70x^2y^2-90xy^3$

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Step-by-step explanation:

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Answer:

The answer is

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Step-by-step explanation:

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Step-by-step explanation:

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