Question

X^2 = 6x + 27; COMPLETING THE SQUARE

Answer 1

x^2 = 6x + 27

x^2−6x−27=0

(x−9)(x+3)=0

x=9,−3

Answer 2

Explanation:

x^2 = 6x + 27

x^2 - 6x = 27

x^2 - 6x + 9 = 27 + 9

(x - 3)^2 = 36

x - 3 = ± √ 36

x = 3 ± 6

x = 3 + 6 = 9

x = 3 - 6 = -3

solutions are : x = -3 or x = 9