If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-2x^2+2x+12=0
a = -2; b = 2; c = +12;
Δ = b2-4ac
Δ = 22-4·(-2)·12
Δ = 100
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{100}=10$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(2)-10}{2*-2}=\frac{-12}{-4} =+3 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(2)+10}{2*-2}=\frac{8}{-4} =-2 $
| x²+1=x+7 | | -21x^²+34x-8=0 | | 2x^2+6x=x+3 | | X+1/2x+4•1/2x=168 | | 5x−9=36 | | 4x+4=6+2x | | (9/7)*x=-(21/4) | | -21x^+34x-8=0 | | 5x+19=11-3x | | 4(2x-4)-3=2x+3 | | -21x²+34x-8=0 | | 5-3x=x+14 | | y=234 | | 6x-(5x+2)=9 | | 7n+4=2n+8 | | 4x^2-3x+9=4x+6 | | 7x-9=5x+23 | | 8-5y^2+9y^2+3(8-5y)-8-5y(y)=30 | | 7x+5=5x-21 | | 2x^2-33x-109=0 | | 5w+3w-7=8w-7 | | 4x^2+24x=35=0 | | 2x*2-33x-109=0 | | x^2-6x+21=3x+1 | | 8=-2z+8 | | 4x-10=x+5= | | x^2-2x-8=3x-2 | | X+6=0,5x | | x+1=1+5x= | | 4x-20=705x | | 7x-1=-5 | | 10-4x=3x+3= |