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Mathematics 20 Online
OpenStudy (anonymous):

2x^2 +17x +21 factor completely

OpenStudy (anonymous):

(x+7)(2x+3)

OpenStudy (anonymous):

how did u get there

OpenStudy (anonymous):

\[given 2x ^{2}+17x+21\] 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

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