How do you use the quadratic formula to solve -2x^2+3x+4=1?

Jun 9, 2018

color(gray)(x = (3 - sqrt33) / 4, (3 + sqrt33) / 3

Explanation:

$- 2 {x}^{2} + 3 x + 4 - 1 = 0$

$- 2 {x}^{2} + 3 x + 3 = 0$

$a = - 2 , b = 3 , c = 3$

$\text{Quadratic formula is } x = \frac{- b \pm \sqrt{{b}^{2} - 4 a c}}{2 a}$

$x = \frac{- 3 \pm \sqrt{9 + 24}}{-} 4$

color(gray)(x = (3 - sqrt33) / 4, (3 + sqrt33) / 3