X^2-81=10

Simple and best practice solution for X^2-81=10 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for X^2-81=10 equation: 


Simplifying
X2 + -81 = 10

Reorder the terms:
-81 + X2 = 10

Solving
-81 + X2 = 10

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '81' to each side of the equation.
-81 + 81 + X2 = 10 + 81

Combine like terms: -81 + 81 = 0
0 + X2 = 10 + 81
X2 = 10 + 81

Combine like terms: 10 + 81 = 91
X2 = 91

Simplifying
X2 = 91

Take the square root of each side:
X = {-9.539392014, 9.539392014}

See similar equations:

| 5k-6(3k+5)=-3k+9 | | 6(3x-1)=3(6x+3) | | 2x^2-5x=3x | | .25x=.50x-9 | | z=22 | | 13.6=X(30-2x)(12-2x) | | 6(24x^2+24x+1)=0 | | 2x^3+21x^2=-40x | | -6.8w=2.5 | | 2x+5+2x=34 | | -5x-(-5)=10x+80 | | 6(2x+1)=0 | | x+3=(4x+4) | | .5x-11=x+41 | | -3x+-13=-16 | | 20x+4=13x-10 | | 6x-30+4x+2+3x=180 | | 7+5*b=-23 | | -2x-16=3x-6 | | .4m=.9 | | .8x-11=.3x+41 | | -2x-14=22 | | 36p+8=32p+8 | | x-3=28+11x | | -4x+4=-2 | | 8a-(-20a-8)=12a | | s-6=22 | | 5(x-2)-14x=-3x-(5-4x) | | 4x+9=X-9 | | 3(x+.50)+y=2.10 | | -5(x-1)=10(x+8) | | -5=-x-16 |

Equations solver categories