x^2-15=20

Simple and best practice solution for x^2-15=20 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^2-15=20 equation: 


Simplifying
x2 + -15 = 20

Reorder the terms:
-15 + x2 = 20

Solving
-15 + x2 = 20

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + x2 = 20 + 15

Combine like terms: -15 + 15 = 0
0 + x2 = 20 + 15
x2 = 20 + 15

Combine like terms: 20 + 15 = 35
x2 = 35

Simplifying
x2 = 35

Take the square root of each side:
x = {-5.916079783, 5.916079783}

See similar equations:

| 7x-10.65=3.35 | | 7+5x-5=-310 | | 4/7=x/13 | | 9+6r-1=6r+24-2r | | 3x4/9 | | -13.5/5m= | | 15x^2+1x-6=0 | | 7(-3-5x)=-21 | | 5x/7-18=13 | | 8+1.4x=21 | | -139+14x=46+9x | | h-4.72=7.52 | | 16y+22=3 | | x^2-8=-8 | | (7+5x)-5=-310 | | 11(12+14x)15(14-5x)=263 | | 8x+2=-8+6x+18 | | 1-7x+x=-47 | | 3x+12y+15= | | 4x-5x-2=5 | | 4(4x-10)=88 | | -5x+13x=14 | | 5x-5+3x=19 | | -5/2,5=x | | 11-14x=-15 | | -3-2=X | | 4x+4+6x=-106 | | -3/4+2/8-2=x | | 6x-25=9+5x | | 4-3x=-26 | | (3x/4)*(12x/7) | | 4+7x=-80 |

Equations solver categories