If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying
4 = x2 + -4
Reorder the terms:
4 = -4 + x2
Solving
4 = -4 + x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-1x2' to each side of the equation.
4 + -1x2 = -4 + x2 + -1x2
Combine like terms: x2 + -1x2 = 0
4 + -1x2 = -4 + 0
4 + -1x2 = -4
Add '-4' to each side of the equation.
4 + -4 + -1x2 = -4 + -4
Combine like terms: 4 + -4 = 0
0 + -1x2 = -4 + -4
-1x2 = -4 + -4
Combine like terms: -4 + -4 = -8
-1x2 = -8
Divide each side by '-1'.
x2 = 8
Simplifying
x2 = 8
Take the square root of each side:
x = {-2.828427125, 2.828427125}
| 2-q=-6 | | 3r-19=59+8r | | -9d-(-6d)-(-13)=-8 | | 2x+10=-8x+40 | | -9d(-6d)-(-13)=-8 | | 4a-7=10+9 | | f(x-1)=4x^2+5x+6 | | 3x+20=r+2 | | 19=x-6 | | v+20=5v | | 50=6+9x | | 6m^2-5mn-6n^2=0 | | 13x-13=5x | | 23=x-13 | | 4(8x+12)=-26-32x | | 5+2u=11u | | 5x+2x+4=x+40 | | 4-9x=11x | | (x+iy)(x+iy)=24+10i | | 6y+3x=-2 | | 18-8u=58 | | p^3+7p^2=16p+112 | | 8x+10y=14 | | -p+5=2p-1 | | 4(1x+1y)= | | 8y+7=7y-4 | | 512c+336s=146671 | | 2y+0.4=18 | | T^2+15t=36 | | 10a^2b+5ab-15a=0 | | 9x+20y=16 | | y+8=2z |