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1.682 x 10^0 1.682 x 10^0
4.15 x 104
NO FALSE
-12 = x+9 x+9 -9 = -12 -9 x = -21
Factor. X^2 + 12X X(X + 12) = 0 X = 0 ------------- X + 12 = 0 X = - 12 --------------