x^2+81=121

Simple and best practice solution for x^2+81=121 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=121 equation:


Simplifying
x2 + 81 = 121

Reorder the terms:
81 + x2 = 121

Solving
81 + x2 = 121

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 = 121 + -81

Combine like terms: 81 + -81 = 0
0 + x2 = 121 + -81
x2 = 121 + -81

Combine like terms: 121 + -81 = 40
x2 = 40

Simplifying
x2 = 40

Take the square root of each side:
x = {-6.32455532, 6.32455532}

See similar equations:

| 4x+5=7x-13 | | 3y^2-22y+35=0 | | 5x=-x^2-4 | | 2(60-y)x+2(60-y)y=9600 | | -3(2x+3)=2x-1 | | 2.5x+10=0 | | -1x^2-16x-63=0 | | 4+2x-2+5=37 | | 13w+47=294 | | 1.5+1=13 | | 6y+9=48 | | 11x^2=x^2+8x | | 46=2-8w+3w | | 4p-12=40 | | 4+2x-2x+5=37 | | x^2+42x-396=0 | | 5(x+2)=2(x-1) | | 30=8+10+c | | 4569+1.8x=5200 | | -6x+11=4 | | 4569+1.8x=4812 | | [2x+6]-4=20 | | 6a^2+5ab-6b^2=0 | | [x]=-5 | | 2[x+4]=8 | | -5[x+1]=-10 | | 180=.5h(11+7) | | 12x^2-13x-4= | | 0=-7a^2-42+49a | | 4y-12=-14 | | [x]=6 | | 3(x+4)+3x=6 |

Equations solver categories