If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying
-2x2 + 7 = -1
Reorder the terms:
7 + -2x2 = -1
Solving
7 + -2x2 = -1
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-7' to each side of the equation.
7 + -7 + -2x2 = -1 + -7
Combine like terms: 7 + -7 = 0
0 + -2x2 = -1 + -7
-2x2 = -1 + -7
Combine like terms: -1 + -7 = -8
-2x2 = -8
Divide each side by '-2'.
x2 = 4
Simplifying
x2 = 4
Take the square root of each side:
x = {-2, 2}
| 4u+16=-2(u+1) | | logx^3=3 | | -11-4=-9/4 | | 7X^2+16X=8 | | -11-4=9/4 | | 5x^2-9x^3=0 | | 20a^2=-12a+8 | | .4(2x+.5)=3(.2x+-2)-4 | | 100y^2-600y+800=0 | | 7(r+2+2s)= | | 2tanx+4=6 | | p=0.2(200+X) | | 9y+6y^3=0 | | 3/5=7/10 | | 4x(x-3)-3x(x-3)=4 | | (2b^2-12b)/(b-12) | | -y^2+3y+12=0 | | 28x^2-31x-13=0 | | (a-2)(a+1)=-2a | | 24-12= | | X^101=100 | | 4x-75=x | | 4c-75=x | | 22-(-19)+5-(-3)= | | 15y^3=7y^2+4y | | x^3+2x^2+5x+6=0 | | 13n^2-7n=0 | | 8(11+5y)-5y=10 | | y=-1/3(3)-6 | | 8-3s=-9+7 | | v/2-3=67 | | v-(1/4)=(-7/8) |