Question

solve the quadratic equation x2 + 3x = 10 by factorization method​

Answer 1

Step-by-step explanation:

${x}^{2} + 3x = 10 \\ {x}^{2} + 3x - 10 = 0 \\ {x}^{2} + 5x - 2x - 10 = 0 \\ x(x + 5) - 2(x + 5) = 0 \\ (x + 5)(x - 2) = 0 \\ x + 5 = 0 \: \: \: \: \: \: x - 2 = 0 \\ x = - 5 \: \: \: \: \: \: x = 2$

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