Question

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X²- 3X =10 ​

Answer 1

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