If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying
100 = x2 + -21
Reorder the terms:
100 = -21 + x2
Solving
100 = -21 + 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.
100 + -1x2 = -21 + x2 + -1x2
Combine like terms: x2 + -1x2 = 0
100 + -1x2 = -21 + 0
100 + -1x2 = -21
Add '-100' to each side of the equation.
100 + -100 + -1x2 = -21 + -100
Combine like terms: 100 + -100 = 0
0 + -1x2 = -21 + -100
-1x2 = -21 + -100
Combine like terms: -21 + -100 = -121
-1x2 = -121
Divide each side by '-1'.
x2 = 121
Simplifying
x2 = 121
Take the square root of each side:
x = {-11, 11}
| 8y+65=-5y | | Y=30.5-(x-6.5) | | u^2-5u+12=4 | | 6+lnx=5 | | 590=10x+20(x+8) | | (3x+4)(x^2-5x-6)= | | 590=x+x+8 | | 5(-3+3X)=-35+5X | | 265=2(x+20)+3(x) | | h=-16t^2+48t+4 | | v=32d^2+32d | | 4+(1.5-x)=8 | | 0.50x+0.35(140)=0.25(136) | | 5(-4n+7)=35 | | d=450(3.75) | | 6(2v+4)=72 | | -2(z+3)=4 | | 2(w+3)=-8 | | 9=(y+2)(y+2) | | d=450(4) | | -3(y-8)=12 | | d=250(7) | | d=250(5) | | d=450(2) | | d=250(6) | | d=450(3) | | 11x+36=3x-4 | | 5n+4=25-2n | | w-5(4w-3)= | | 33-4v=5v+6 | | 4+35X=15X+12 | | -14n+6=-12n-4 |