Question

4x^2 + 4x = 5 ayudaaa ?

Answer 1

$4x^2 + 4x = 5$
$4x^2 + 4x -5=0$
usando la fórmula de baskara
$x= \frac{-b+- \sqrt{b^2-4ac} }{2a}$
$x= \frac{-4+- \sqrt{4^2-4(4)(-5)} }{2(4)}$
$x= \frac{-4+- \sqrt{16+80} }{8}$
$x= \frac{-4+- \sqrt{16.6} }{8}$
$x= \frac{-4+- 4 \sqrt{6} }{8}$
$x= \frac{-1+- \sqrt{6} }{2}$
$x_1= \frac{-1- \sqrt{6} }{2}$
$x_2= \frac{-1+ \sqrt{6} }{2}$