Question

Solve by completing the square:X^2+6x-12=0

Answer 1

x² + 6x -12 = 0
x = -(6) +/- √((6)² - 4(1)(-12))
2(1)
x = -6 +/- √(36 + 48)
2
x = -6 +/- √(84)
2
x = -6 +/- 2√(21)
2
x = -3 + √(21)
x = -3 + √(21) x = -3 - √(21)