Answer: 2b^2 • (b^2 + 7b + 4)
Explanation:
Step 1 :
Trying to factor by splitting the middle term; Factor b2+7b+4
The first term is, b2 its coefficient is 1 .
The middle term is, +7b its coefficient is 7 .
The last term, "the constant", is +4
Step-1 : Multiply the coefficient of the first term by the constant 1 x 4 = 4
Step-2 : Find two factors of 4 whose sum equals the coefficient of the middle term, which is 7
= 2b^2 • (b^2 + 7b + 4)
I hope this helps.