x^2 +5x+2=0 Factor and solve

Asked by AnneS2 on 03 Sep 07:22

Last updated by anonymous on 04 Sep 13:04

Answered by CherieS on 04 Sep 13:04

x^2 +5x+2=0

x^2 +5x+2-2=0 -2

x^2+5x=-2

x^2+5x+25/4=-2+25/4

(x+5/2)(x+5/2)=(-8+25)/4

(x+5/2)(x+5/2)=17/4

sq rt each side

x=+/-(sq rt17)/2-5/2

(x+5/2)^2-17/4 = 0