SOLUTION: Simplify the expression -4x2(3x − 7). -12x3 + 28 -12x3 + 28x2 -12x3 − 28 -12x3 − 28x2

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Simplify the expression -4x2(3x − 7). -12x3 + 28 -12x3 + 28x2 -12x3 − 28 -12x3 − 28x2      Log On


   

Question 1083439: Simplify the expression -4x2(3x − 7).
-12x3 + 28
-12x3 + 28x2
-12x3 − 28
-12x3 − 28x2
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Answer: Choice B) -12x^3 + 28x^2

Note: x^2 means "x squared" and x^3 means "x cubed"
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Explanation:

Use the distribution rule to get
-4x^2*(3x - 7)
-4x^2*(3x) - 4x^2*(-7)
-12x^3 + 28x^2