Question

ecuaciones cuadráticas por factorizacion

1)
${x}^{2} + 7x + 10 = 0$
2)
${x}^{2} - 9x + 20 = 0$
3)
${x}^{2} - 3x - 10 = 0$
4)
${x}^{2} + 3x - 4 = 0$
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Answer 1

Respuesta:

$1){x}^{2} + 7x + 10 = 0 \\ (x + 5)(x + 2) = 0\\ 2){x}^{2} - 9x + 20 = 0 \\(x - 5)(x - 4) = 0 \\ 3){x}^{2} - 3x - 10 = 0 \\ (x - 5)(x + 2) = 0 \\ 4) {x}^{2} + 3x - 4 = 0 \\ (x + 4)(x - 1) = 0$