Question 982479
x^2+8x=7
x^2+8x+(8/2)^2=7+(8/2)^2
x^2+8x+16=23
x^2+8x+16=23

(x+4)^2 = 23

(x+4) = +/-sqrt(23)

x= -4 +/- sqrt(23)


sum of roots = 0
product of roots = -3

x^2-(sum of roots)x+(product of roots =0

x^2-3=0 is the equation