u^2-4=0

Simple and best practice solution for u^2-4=0 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 u^2-4=0 equation:


Simplifying
u2 + -4 = 0

Reorder the terms:
-4 + u2 = 0

Solving
-4 + u2 = 0

Solving for variable 'u'.

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

Add '4' to each side of the equation.
-4 + 4 + u2 = 0 + 4

Combine like terms: -4 + 4 = 0
0 + u2 = 0 + 4
u2 = 0 + 4

Combine like terms: 0 + 4 = 4
u2 = 4

Simplifying
u2 = 4

Take the square root of each side:
u = {-2, 2}

See similar equations:

| 2x+4(50+x)=172 | | x+(x-7.5)=2(x-7.5) | | -2(-3x+3)=0 | | (X-8)(x-23)=0 | | u^2-2y=0 | | 8x+1x=12x+40+5x | | 4(3x+9)=144 | | 4x+2(50+x)=172 | | 4x+2(50+x)= | | 4(6x+4)=16 | | -6(9-7x)=156 | | Ln(x+3)=-1 | | 8+2x=-2 | | 6x-0.88=29.1 | | 6x-10=-12 | | 7.4=55m | | 190+4x+x=540 | | 10x^2+5x-16=0 | | -5x+3=0.2 | | c=2t+12 | | a=55m | | x^4-28x^2+871x-6748=0 | | 4x+3=73-3x | | t^3-3t+3=0 | | (999)0.25= | | n+(n+1)+(n+2)+(n+3)=50 | | 5-2x=9x+28 | | 3x+5+4x=5x+27 | | x+513.8=738.3 | | -4x-7=-29+7x | | 5-7(y+12)=16 | | 5x^2+50x+33=-12 |

Equations solver categories