z^2+17=81

Simple and best practice solution for z^2+17=81 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 z^2+17=81 equation: 


Simplifying
z2 + 17 = 81

Reorder the terms:
17 + z2 = 81

Solving
17 + z2 = 81

Solving for variable 'z'.

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

Add '-17' to each side of the equation.
17 + -17 + z2 = 81 + -17

Combine like terms: 17 + -17 = 0
0 + z2 = 81 + -17
z2 = 81 + -17

Combine like terms: 81 + -17 = 64
z2 = 64

Simplifying
z2 = 64

Take the square root of each side:
z = {-8, 8}

See similar equations:

| x^2-34x-4=0 | | 0.6a-1.6=0.8 | | 1/4p=6-1/2p | | (x-3)/5=(3x)/7 | | 9-82/7 | | 3x^3-5x=0 | | 4x-1=6x+15 | | 10-7x=48-14x | | 5+x+7x=-43 | | 3x-2+x+1=10 | | 3x^3+5x=0 | | 0.28/0.2*3.7/1.8 | | 9/2n^2+9/2n+1 | | -2/3v=14 | | 10-6+2x=100 | | 7x+9-5x=9 | | =3(2x+y)+2(5x+3y) | | 7x+9-5=9 | | 2x^3-5x^2+x+2=0 | | -50=-110-M | | 3y-8+2y=-12-6 | | -50=110-M | | 6x-9-3x=-9 | | 11-5x=13-8x | | 0.3/1.25*2.5/0.6 | | -6=x+3x+2 | | 1/4+y=-5/8 | | w^2+12w=13 | | 93=23x | | f(x)=-x^2+2x+6 | | kx^2-4x+k-3=0 | | 7.47=2(3.14)r |

Equations solver categories