Question

2x² + 6x - 35=0 socorro por favor preciso da resposta agrrrr

Answer 1

Resposta:

x=2,94409 e x=-5,94409

Explicação passo a passo:

x$x_{1,\:2}=\frac{-6\pm \sqrt{6^2-4\cdot \:2\left(-35\right)}}{2\cdot \:2}$

$x_{1,\:2}=\frac{-6\pm \:2\sqrt{79}}{2\cdot \:2}$

$x_1=\frac{-6+2\sqrt{79}}{2\cdot \:2},\:x_2=\frac{-6-2\sqrt{79}}{2\cdot \:2}$

$x=\frac{-3+\sqrt{79}}{2},\:x=-\frac{3+\sqrt{79}}{2}$

$\mathrm{Decimal}:\quad x=2.94409\dots ,\:x=-5.94409\dots$