Question

Factorizar 4x^2-7x-2

Answer 1

Respuesta:

Explicación paso a paso:

$4x^{2} -7x -2\\x=\frac{-b+-\sqrt{b^{2} -4ac} }{2a}$

$\frac{-(-7)+-\sqrt{(-7)^{2} -4(4)(-2)} }{2*4}$

$[tex]\frac{7+-\sqrt{49-16(-2)} }{8}\\\frac{7+-\sqrt{49+32} }{8} \\\frac{7+-9}{8}$

$x1=\frac{7+9}{8} = 2\\x2=\frac{7-9}{8} =-\frac{1}{4}$