solve and check each of the following quadratic equation
(1)x^2+16x=36
(2)x^2=10x-16
(3)3x=x^2-4
I'll do one by completing the square. Use the same method for the others. Come on back if you run into trouble.
x^2 + 16x = 36
x^2 + 16x + 64 = 36+64
(x+8)^2 = 100
x+8 = ±10
x = -8 ± 10
x = -18,2