Find the product of

label Mathematics
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schedule 1 Day
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2x(-9x - 3)

A)-24x^2   B) -9^2 -6x   C) -18x^2 -3x  D) -18^2 - 6x

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-5x^4(-11x^4 -1)

a) 55x^8 + 5x^4    b)55x^4 + 5  c) 55x^8 -1  d)60x^4

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10x^6(7x^4 - 5x^3)

a) 70x^10 + 50x^9   b)70x^2 - 50x  c) 70x^10 - 5x^3  d) 70x^10 - 50x^9

May 12th, 2015

For each problem, you are distributing the term outside of parentheses.

1) 2x(-9x - 3) = 2x*(-9x) - 2x*3 = -18x^2 - 6x (D)

2) -5x^4(-11x^4 - 1) = -5x^4*(-11x^4) - 5x^4*(-1) = 55x^8 + 5x^4 (A)

3) 10x^6(7x^4 - 5x^3) = 10x^6*(7x^4) - 10x^6*(5x^3) = 70x^10 - 50x^9 (D)

May 12th, 2015

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May 12th, 2015
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May 12th, 2015
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