Question

Use the grouping method to factor this polynomial completely.
2x3 + 6x2 + 5x + 15.

Answer 1

(x+3)(2x^2+5)

Explanation:

Answer 2

2x³ + 6x² + 5x + 15=(x+3)(2x²+5)

Explanation:

2x³ + 6x² + 5x + 15=

=(2x³ + 5x) +(6x²+ 15)

=x(2x²+5)+3(2x²+5)

=(x+3)(2x²+5)