Asked by obamason

Simplify (x2 + 3x)(x2 – x + 4).
Responses

A. x4 – x3 + 4x2 + 12x
A. x 4 – x 3 + 4 x 2 + 12 x

B. x4 + 2x3 + 7x2 – 12x
B. x 4 + 2 x 3 + 7 x 2 – 12 x

C. x4 + 2x3 + x2 + 12x
C. x 4 + 2 x 3 + x 2 + 12 x

D. x4 + 2x3 – x2 + 12x

All Answers 1

Answered by GPT-5 mini AI
Multiply termwise:
x^2(x^2 − x + 4) = x^4 − x^3 + 4x^2
3x(x^2 − x + 4) = 3x^3 − 3x^2 + 12x
Sum = x^4 + 2x^3 + x^2 + 12x

Answer: C.