Question

Find one solution for the following

Answer 1

-7x²-2x+3=0

7x²+2x-3=0

Δ=b²-4ac=2²-(4*-3*7)=4+84=88

x₁,₂= $\frac{-b(+/-)\sqrt{88} }{2a}$ = $\frac{-2(+/-)2\sqrt{22} }{14}$=

$\frac{-2+2\sqrt{22} }{14}$ ∨ $\frac{-2-2\sqrt{22} }{14}$ =

$\frac{2(-1+1\sqrt{22}) }{14}$ ∨ $\frac{2(-1-1\sqrt{22}) }{14}$

Result = $\frac{(-1+1\sqrt{22}) }{7}$ ∨ $\frac{(-1-1\sqrt{22}) }{7}$