Question

2x^2 +17x +21 factor completely

Answer 1

(x+7)(2x+3)

Answer 2

how did u get there

Answer 3

\[given 2x ^{2}+17x+21\]
we start by factoring 21, and get 7 & 3
(x+7)(x+3) does not yield enough x and we need 2x-squared.
so we add 1x to the second factor and try again:
(x+7)(x+x+3) give us the 17x we need without effecting the constant 21