justine-brown_60b5d1d0ce533
justine-brown_60b5d1d0ce533
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a) x²+6x=0 x (x + 6) = 0 x = 0 x + 6 = 0 x = -6 S = {0,-6} b) 2x²-10x=0 x (2x - 10) = 0 x = 0 2x - 10 = 0 2x = 10 x = 10/2 x = 5 c) 3x²-75=0 3x² = 75 x² = 75/3 x² = 25 x = â25 x = 5 d) x²-7x+10=0 - b ± …