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(x - 12)(x + 12)
x2_12x-3 = 0 Using the formula for solving quadratics: x = 12 plus/minus sqrt (144 - (4 x 1 x -3))/2 x = 12 plus/minus (sqrt 156)/2 x = 12 + (sqrt 156)/2 = 12.25 or x = 12 - (sqrt 156)/2 = -0.25
irdk
2x - 12 > 2 + x x - 12 > 2 x > 14
x - 12 = 3 Add '12' to both sides x = 3 + 12 x = 15