Question

3x^2 - 4x - 7 = 0, solve and show your work. :) Brainliest to best answer!

Answer 1

Δ=b^2-4ac=16-4*(-7)*3=16+84=100
$x_{1} = \frac{-b+ \sqrt{Δ} }{2a}$
$x_{2} = \frac{-b- \sqrt{Δ} }{2a}$
x1=(4+10)/6=7/3
x2=(4-10)/6=-1