2x² −14x−120=0 solve by middle term splitting
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2x² -14x -120 = 0
(divide the equation by 2)
x² -7x - 60 = 0
x² -12x + 5x - 60 = 0
x ( x-12) + 5 (x-12) = 0
(x-12) (x+5) = 0
x = 12 ; x = -5
(divide the equation by 2)
x² -7x - 60 = 0
x² -12x + 5x - 60 = 0
x ( x-12) + 5 (x-12) = 0
(x-12) (x+5) = 0
x = 12 ; x = -5
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