Which is the correct step below for using the grouping method to factor the following polynomial? 2x2 + 6x + 5x + 15
A. x(2x + 6) + 5(x + 3)
B. 2x(x + 3) + 5(x + 3)
C. 2(x^2 + 6) + 5(x + 3)
D. x(x + 5) + 3(2x + 5)

Question

Which is the correct step below for using the grouping method to factor the following polynomial? 2x2 + 6x + 5x + 15
	A.	x(2x + 6) + 5(x + 3)
	B.	2x(x + 3) + 5(x + 3)
	C.	2(x^2 + 6) + 5(x + 3)
	D.	x(x + 5) + 3(2x + 5)

anonymous · Answer

$$2x^2 + 6x + 5x + 15$$
$$(2x^2 + 6x) + (5x + 15)$$
$$2x(x + 3) + 5 (x + 3)$$

anonymous · Answer

B IS THE ANSWER

mathstudent55 · Answer

You need to factor as much as possible out of the first two terms. That is 2x.
Then you need to factor as much as possible out of the last two terms. That is 5.
B. is the answer.

anonymous · Answer

|dw:1367199967659:dw|