2x^2-5=11

Simple and best practice solution for 2x^2-5=11 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^2-5=11 equation:


Simplifying
2x2 + -5 = 11

Reorder the terms:
-5 + 2x2 = 11

Solving
-5 + 2x2 = 11

Solving for variable 'x'.

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

Add '5' to each side of the equation.
-5 + 5 + 2x2 = 11 + 5

Combine like terms: -5 + 5 = 0
0 + 2x2 = 11 + 5
2x2 = 11 + 5

Combine like terms: 11 + 5 = 16
2x2 = 16

Divide each side by '2'.
x2 = 8

Simplifying
x2 = 8

Take the square root of each side:
x = {-2.828427125, 2.828427125}

See similar equations:

| 5+5y=-5 | | 2+5y=-5 | | (4x-5)(2x+3)=13 | | 1+5y=-5 | | 64p^2-16p+1=00 | | 3(a+7)=-24+3a | | sinx=.47 | | (-7z)(-4z)= | | 2x+3x+6=14 | | 0.14x+0.6(x+5)=0.01(4x-3) | | 3(2x+4)=2(2x+2) | | 3x+5y=-57 | | 3s-5=11 | | 30x+12y=0 | | (6x-3)(4x^2+7x-8)= | | ((x^2)-4x)=0 | | -4(5k-8)=-7k-7 | | X^3-6x^2-13x-15=0 | | -12=6-x | | 4x-15=5(x-3) | | (3y+5)(3y+5)(3y+5)= | | 49=-1/100n+50 | | 49=1/100+48 | | 3Q+7Q= | | 49=1/10n+59 | | (4y+4)(4y+4)(4y+4)= | | 7-(10b-3)= | | (3+y)(4y-5)=0 | | 49=-1/10n+59 | | 6x+7y=25 | | b*b=560 | | h=16t^2+36t+6 |

Equations solver categories