Question

es para hoy doy corona

Answer 1

Respuesta:

$\\7$

Explicación paso a paso:

$x^2-2x-35=0\\\\x_{1,\:2}=\frac{-\left(-2\right)\pm \sqrt{\left(-2\right)^2-4\cdot \:1\cdot \left(-35\right)}}{2\cdot \:1}\\\\x_{1,\:2}=\frac{-\left(-2\right)\pm \sqrt{\left(-2\right)^2-4\cdot \:1\cdot \left(-35\right)}}{2\cdot \:1}\\\\x_{1,\:2}=\frac{-\left(-2\right)\pm \:12}{2\cdot \:1}$

$x_1=\frac{-\left(-2\right)+12}{2\cdot \:1},\:x_2=\frac{-\left(-2\right)-12}{2\cdot \:1}\\\\\frac{-\left(-2\right)+12}{2\cdot \:1}\\\\=\frac{2+12}{2\cdot \:1}\\\\=\frac{14}{2\cdot \:1}\\\\=\frac{14}{2}\\\\=7$