Solve the equation 10-3x-x2 = 0
The correct answer is A. x=2 or-5
10 â 3x - x2 = 0; 10 â 5x + 2x - x2 = 0
5(2 â x) + x(2 â x) = 0; (2 â x)(5 + x) = 0
2 â x = 0 or 5 + x = 0; x = 2 or x = -5
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