SOLUTION: x^2+8x=20 A.Add (b/2)^2 to both sides of the equation. B.Factor left side of the equation.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: x^2+8x=20 A.Add (b/2)^2 to both sides of the equation. B.Factor left side of the equation.       Log On


   

Question 668431: x^2+8x=20
A.Add (b/2)^2 to both sides of the equation.
B.Factor left side of the equation.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

x^2+8x=20

x^2+8x + 16 =20 +16

(x + 4)(x+4) = 36

 (x+4)^2 = 36