Question

Simplify: 9x3 + 8x2 + 3x2

A. 20x7
B. 9x3 + 11x4
C. 9x3 + 11x2
D. 9x3 + 24x4

Answer 1

Answer:

$\large\boxed{C.\ 9x^3+11x^2}$

Step-by-step explanation:

$9x^3+8x^2+3x^2\qquad\text{combine like terms}\\\\=9x^3+(8x^2+3x^2)\\\\=9x^3+11x^2$