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ira [324]
4 years ago
7

Please help! Will give the brain thing! 40 points.

Mathematics
2 answers:
Mila [183]4 years ago
5 0

<em>Answer:</em>

<em>1.    2x(-3x - 1)</em>

<em>-6x^2 - 2x</em>

<em>2.   -x(4 + 2x)</em>

<em>-4x - 2x^2</em>

<em>3.   -5x(-2x + 4)</em>

<em>10x^2 - 20x</em>

<em>4.   x(-2x - 2) + 3(-4x - 6x)</em>

<em>-2x^2 - 2x - 12x - 18x</em>

<em>-2x^2 - 32x</em>

<em>5.   2xy(-3x - 5y) + 4y(-2xy - 4x)</em>

<em>-6x^2y - 10xy^2 -8xy^2 - 16yx</em>

<em>-6x^2y -18xy^2 - 16yx</em>

Inessa [10]4 years ago
3 0

Answer:

1.    2x(-3x - 1)

-6x^2 - 2x

2.   -x(4 + 2x)

-4x - 2x^2

3.   -5x(-2x + 4)

10x^2 - 20x

4.   x(-2x - 2) + 3(-4x - 6x)

-2x^2 - 2x - 12x - 18x

-2x^2 - 32x

5.   2xy(-3x - 5y) + 4y(-2xy - 4x)

-6x^2y - 10xy^2 -8xy^2 - 16yx

-6x^2y -18xy^2 - 16yx

You just distribute (multiply) what's outside the parentheses with everything inside the parentheses.  Then, combine like terms.

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