x^2-81=17

Simple and best practice solution for x^2-81=17 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=17 equation: 


Simplifying
x2 + -81 = 17

Reorder the terms:
-81 + x2 = 17

Solving
-81 + x2 = 17

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 = 17 + 81

Combine like terms: -81 + 81 = 0
0 + x2 = 17 + 81
x2 = 17 + 81

Combine like terms: 17 + 81 = 98
x2 = 98

Simplifying
x2 = 98

Take the square root of each side:
x = {-9.899494937, 9.899494937}

See similar equations:

| x^2-18x-18=17 | | x^2-81x-81=17 | | x^2-81x-64=0 | | log(x)=0.39 | | 2x+4cm=46cm | | 4y-11=15 | | -8+6(1x-3)+4x= | | 7(2m-6)+8m= | | .75h-3h=.25h+.75 | | 9r-3s+7-4r+s-3= | | 7m-15=55 | | -4a-4+a-2b-7a+6= | | -16=-32-y | | A+5=18 | | 1.5m-3.6=-1.5 | | 37+12y=85 | | 2.1(5w-3)+8.2=6w+22.95 | | 2(3x-7)=9*-7 | | 3*2-11=2(y-4) | | 2(3y-6)3=1.4 | | 10h+10=110 | | 24=0.4x | | 92h+23=60 | | 2x^2+19x-4=0 | | 10m+6=106 | | 12(6s+12)=13(-12s-21) | | 6(3c-4)-(-7c)=4(2c-14)-3c | | -52-44= | | (3a+b-4c)6= | | -9n-15=93 | | 298+n=295 | | -10x+9y=-47 |

Equations solver categories