## ValentinaT Use quadratic formula. x^2 + 3 = -4x 9 months ago 9 months ago

1. completeidiot

the quadratic formula is only applicable for the form $ax^2 +bx+c=0$ the quadratic formula is $x= \frac{-b \pm \sqrt{b^2-4ac}}{2a}$

2. precal

|dw:1370299385934:dw|

3. precal

just sub those values into the quadratic formula given by completeidiot