Question

The solutions to 2x2 + 8x - 12 = 0 are x = -8 + 160 Choose the simplifiedform of these solutions,A. x = -2 +4 10O B. x= -8 +16VTO40 C. X = 1 - 2 + 10O D. x= -8 + 4N10X4

Answer 1

Let's simpifuy the answer they gave us:

$\begin{gathered} x=\frac{-8\pm\sqrt{160}}{4} \\ x=\frac{-8\pm\sqrt{16*10}}{4} \\ x=\frac{-8\pm4\sqrt{10}}{4} \\ x=-2\pm\sqrt{10} \end{gathered}$

Answer letter C