Question

PLEASE HELP MEEE

Simplify the expression to a polynomial in standard form

(x+3)(2x2+3x+7)

Answer 1

2x^3 + 9x^2 + 16x + 21.

Explanation:

We first multiply the expression in the second parentheses by x , then by +3:

(x + 3)(2x^2 + 3x + 7)

= x(2x^2 + 3x + 7) + 3(2x^2 + 3x + 7)

= 2x^3 + 3x^2 + 7x + 6x^2 + 9x + 21 Now we add like terms:

= 2x^3 + 9x^2 + 16x + 21.