x^2-9=36

Simple and best practice solution for x^2-9=36 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^2-9=36 equation: 


Simplifying
x2 + -9 = 36

Reorder the terms:
-9 + x2 = 36

Solving
-9 + x2 = 36

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + x2 = 36 + 9

Combine like terms: -9 + 9 = 0
0 + x2 = 36 + 9
x2 = 36 + 9

Combine like terms: 36 + 9 = 45
x2 = 45

Simplifying
x2 = 45

Take the square root of each side:
x = {-6.708203933, 6.708203933}

See similar equations:

| 3=2c-5 | | 5*(3n-2)*2n=960 | | -3x+6x+2=-47-4x | | X^2+4x-64=0 | | 3e-2=25 | | 343-x^3= | | 6=-7x+13 | | -m=6 | | -84=-12x | | 25x+7y-27+2x= | | X^2+5x-204=0 | | 4n+(7n-3)=9(n-5) | | 16x^2=40x-19 | | x^3-3x^2-40x=0 | | 5(3+5x)-5=110 | | 3x+2(-x)+x+3=x+9 | | m-13=-22 | | -36-4= | | 4+n/3=6 | | 10x-195=2x-11 | | 2+4w-3w=5-4 | | 2x+-3x=3x+7 | | 3x^2-18x-120=0 | | -36-20= | | z-45=-15 | | 6b-2r=3r | | 25+7.50w=250 | | 14x^2=-26x | | 8=6x+1x | | 6d+9=5d+18 | | 6h^2+77h-13=0 | | 3=4(z-3)+z |

Equations solver categories