2x^2-8=22

Simple and best practice solution for 2x^2-8=22 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 2x^2-8=22 equation: 


Simplifying
2x2 + -8 = 22

Reorder the terms:
-8 + 2x2 = 22

Solving
-8 + 2x2 = 22

Solving for variable 'x'.

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

Add '8' to each side of the equation.
-8 + 8 + 2x2 = 22 + 8

Combine like terms: -8 + 8 = 0
0 + 2x2 = 22 + 8
2x2 = 22 + 8

Combine like terms: 22 + 8 = 30
2x2 = 30

Divide each side by '2'.
x2 = 15

Simplifying
x2 = 15

Take the square root of each side:
x = {-3.872983346, 3.872983346}

See similar equations:

| 7y+2=3 | | 15(X-19)=-255 | | 5w=-25 | | (5r+2)(5r-2)= | | (3)/(x-2)-(7/5)=2 | | 1/x-5=10/x^2-25 | | 2a+.4=5 | | 9(3x-4)=-(3x+3) | | 5m-3m+5=19 | | h(t)=-16t^2+63t | | 5x-3=13+(3*x) | | 13h+-11h=18 | | -2x+7=-3(x+10) | | 4(3-3)=36 | | -2x-7=-3(x-10) | | (X+3)(x-7)(5-x)=0 | | 2x+7=-3(x-10) | | 9y+4=4y+9 | | -2x+7=-3(x-10) | | 4a(3a+2)= | | 0=4x^4-5x^2+3x-2 | | 60=-2x-98 | | X(x+3)-2x(x-6)= | | y^2-6y=-4 | | -5j+-6j+-15j+-7=19 | | -19k-(-3k)-4k+16k=20 | | 6+24=210 | | (3a+5b)-(2a-4b)= | | 1/6x-6=2 | | -x-4x-2=-2x-17 | | -6(7b-6)-b=-6b-38 | | x^2-4y^2=25 |

Equations solver categories