Question

Multiply the polynomials.
(x+ 2)(2x2 + 9x+8)

Answer 1

2x³ + 13x² + 26x + 16

Explanation:

(x+ 2)(2x² + 9x+8)

= 2x²(x) + 9x(x) +8(x) + 2x²(2) + 9x(2) +8(2)

= 2x³ + 9x² +8x + 4x² + 18x + 16

= 2x³ + 13x² + 26x + 16

Answer 2

2x³ + 13x² + 26x + 16

Explanation:

(x+ 2)(2x² + 9x+8)

= 2x²(x) + 9x(x) +8(x) + 2x²(2) + 9x(2) +8(2)

= 2x³ + 9x² +8x + 4x² + 18x + 16

= 2x³ + 13x² + 26x + 16