Question

5x²+15x-140=0 valor de x ​

Answer 1

$5 {x}^{2} + 15x - 140 = 0 \\ 5( \frac{5 {x}^{2} }{5} + \frac{15x}{5} - \frac{140}{5}) \\ 5( {x}^{2} + 3x - 28) \\ 5(x - 4)(x + 7)$

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