Z^2-1=8

Simple and best practice solution for Z^2-1=8 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^2-1=8 equation: 


Simplifying
Z2 + -1 = 8

Reorder the terms:
-1 + Z2 = 8

Solving
-1 + Z2 = 8

Solving for variable 'Z'.

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

Add '1' to each side of the equation.
-1 + 1 + Z2 = 8 + 1

Combine like terms: -1 + 1 = 0
0 + Z2 = 8 + 1
Z2 = 8 + 1

Combine like terms: 8 + 1 = 9
Z2 = 9

Simplifying
Z2 = 9

Take the square root of each side:
Z = {-3, 3}

See similar equations:

| 44p+44-4p=28p+28 | | 6x+3975=17.95x+995 | | 7x+12=-9x | | v-2.2=-4.2 | | P^2-21p-22=0 | | -3(3+k)=-69 | | 27x+77=4x-16 | | 4404.8894=824.0616*h | | 3(2x+3)=8x+3 | | v-2.3=-4.2 | | 44004.8894=824.0616*h | | 27/38=x/x+5 | | (X+14)-(8-2x)= | | 3x+27+9(x-1)=180 | | -2b-3=5 | | r^8=16 | | 11x+2y=44 | | X^2+7x-48=0 | | 16x=8.10 | | 5x+-15=65 | | 4(5-y)-6(2+y)=4 | | 8m+13n=42 | | 8b-5=1a | | 5z(4z+2)=166 | | 4957.3692=b*89.5 | | 3x+7x=300-5x | | 1/6(-13/8x+9)=-8 | | 2(w+3)=equation | | 0.1(x+250)=2500 | | 8(-2x-4)+12=-12 | | 5u+4=7(u-2) | | 5m+18=8-5m |

Equations solver categories