a^2-13=0

Simple and best practice solution for a^2-13=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^2-13=0 equation: 


Simplifying
a2 + -13 = 0

Reorder the terms:
-13 + a2 = 0

Solving
-13 + a2 = 0

Solving for variable 'a'.

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

Add '13' to each side of the equation.
-13 + 13 + a2 = 0 + 13

Combine like terms: -13 + 13 = 0
0 + a2 = 0 + 13
a2 = 0 + 13

Combine like terms: 0 + 13 = 13
a2 = 13

Simplifying
a2 = 13

Take the square root of each side:
a = {-3.605551275, 3.605551275}

See similar equations:

| -26+13b=19-2b | | x/9-8 | | -(5-m)=-(7m+5) | | 6x+4y=58 | | -(x+5)+7=3x+2-4x | | n^2+6-7=0 | | 264=r(4) | | 264=2(4) | | (y+4)3-6y=2(4-2y) | | 270=r(5) | | 6(2m+3)=4-(m-1) | | 2x(x+7x)= | | (2(2x-1)/6)+5=(3(x+7)/6) | | F(x)=6(x-5)-4 | | 1/3(0.04)+1/2(0.03)+x/6(0.035)=615 | | A=2(ab+ah+bh) | | 7x+x=8x | | x/3(0.04)+x/2(0.03)+x/6(0.035)=615 | | 10b^2+21d=10d+35 | | 6c+4c^3= | | (x/x+1)-(4/x-2)=2 | | 0=x^3+6x^2+18x+27 | | (2(2x-1)/6)+5=(3(x+7))/6 | | 2(4)-3=5 | | (5z^2-5)-9z^2=0 | | 8=10+2(-1) | | 3(-2)+7=-1 | | 3(-2)+7= | | -7x+4=10 | | N=(2/3)(4+m) | | 9/r+8 | | -80-9x=28 |

Equations solver categories