Math

2x^2 +9x+1=0 Factor and solve

Asked by AnneS2 on 03 Sep 07:22

Last updated by anonymous on 14 Jul 17:22

1 Answers

Answered by CherieS on 04 Sep 12:49

2x^2 +9x+1=0

(2x^2 +9x+1)/2=0/2 x^2+9/2x+1/2=0 x^2+9/2x+1/2-1/2=0-1/2 x^2+9/2x=-1/2 1/2 coef x=the sqr=81/16 x^2+9/2x+81/16=-1/2+81/16 x^2+9/2x+81/16=73/16 (x+9/4) (x+9/4)=73/16 x+9/4=(sqr rt 73/16)- (sq rt 73)/4 x+9/4=(sq rt 73)/4 Solve: x+9/4=(sq rt 73)/4 x=(sq rt 73)/4-9/4