PLEASE HELP ME, I DON'T UNDERSTAND! :(
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Answer:
x^2 + 3x - 1
Step-by-step explanation:
x^3 +5x^2 + 5x - 2
= x^3 + 2x^2 + 3x^2 + 6x - x - 2
= (x^3 + 2x^2) + (3x^2 + 6x) - (x + 2)
= x^2(x + 2) + 3x(x + 2) - (x + 2)
= (x^2 + 3x - 1)(x + 2)
Area = x^3 +5x^2 + 5x - 2 = (x^2 + 3x - 1)(x + 2)
Width = (x + 2)
Then, length = (x^2 + 3x - 1)