Question

Resolver el ejercicio

Answer 1

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$x {}^{2} - 3x - 4 = 0 \\ x {}^{2} + x - 4x - 4 = 0 \\ x \times (x + 1) - 4x - 4 = 0 \\ x \times (x + 1) - 4(x + 1) = 0 \\ (x + 1) \times (x - 4) = 0 \\ x + 1 = 0 \\ x - 4 = 0 \\ x = - 1 \\ x - 4 = 0 \\ x = - 1 \\ x = 4 \\ x1 = - 1.x2 = 4$

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Firmado: Lohany Reina del infierno彡★

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