-a^2-4=0

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


Simplifying
-1a2 + -4 = 0

Reorder the terms:
-4 + -1a2 = 0

Solving
-4 + -1a2 = 0

Solving for variable 'a'.

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

Add '4' to each side of the equation.
-4 + 4 + -1a2 = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -1a2 = 0 + 4
-1a2 = 0 + 4

Combine like terms: 0 + 4 = 4
-1a2 = 4

Divide each side by '-1'.
a2 = -4

Simplifying
a2 = -4

Reorder the terms:
4 + a2 = -4 + 4

Combine like terms: -4 + 4 = 0
4 + a2 = 0

The solution to this equation could not be determined.

See similar equations:

| 2x^2+16x+50=0 | | (x-7)(3x+2)=0 | | 5x+10(2x-5)=180 | | t^2-15t+50=0 | | t^2+10t+16=0 | | 2(w+5)+8w=20 | | 0.6x-3.8=0.4 | | n^2+n-56=0 | | (x^3)2= | | (8-x)(16-x)=82 | | (14)-(-12)= | | -4(t-3)+9t=7t-7 | | 5(v-8)-8v=-25 | | (8-2x)(16-2x)=82 | | (8-2x)(16-2x)=0 | | x+1=4x+1 | | 3x+9=x+1 | | -84=-p^2+8p | | -16+7y=30 | | 5x+3=-3+x+10 | | 3y-15=y+1 | | 6(3+1.5y)-y=-14 | | t+27=4t | | 4x^2-16x=128 | | -3-5x=32 | | 4x^2-40x=0 | | -27+x=x+21 | | 5x+22=2x+1 | | 4x-37=51 | | 6t-18=30 | | 3d-25=3d | | 5x-11=-19 |

Equations solver categories