z^2-10z=-9

Simple and best practice solution for z^2-10z=-9 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^2-10z=-9 equation:


Simplifying
z2 + -10z = -9

Reorder the terms:
-10z + z2 = -9

Solving
-10z + z2 = -9

Solving for variable 'z'.

Reorder the terms:
9 + -10z + z2 = -9 + 9

Combine like terms: -9 + 9 = 0
9 + -10z + z2 = 0

Factor a trinomial.
(1 + -1z)(9 + -1z) = 0

Subproblem 1

Set the factor '(1 + -1z)' equal to zero and attempt to solve: Simplifying 1 + -1z = 0 Solving 1 + -1z = 0 Move all terms containing z to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1z = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1z = 0 + -1 -1z = 0 + -1 Combine like terms: 0 + -1 = -1 -1z = -1 Divide each side by '-1'. z = 1 Simplifying z = 1

Subproblem 2

Set the factor '(9 + -1z)' equal to zero and attempt to solve: Simplifying 9 + -1z = 0 Solving 9 + -1z = 0 Move all terms containing z to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1z = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1z = 0 + -9 -1z = 0 + -9 Combine like terms: 0 + -9 = -9 -1z = -9 Divide each side by '-1'. z = 9 Simplifying z = 9

Solution

z = {1, 9}

See similar equations:

| (V^2+2)=2V^2-5V+22 | | 3x+5=x+19whatisx | | -12v-14+10v-6=-80 | | 3x(5+6)=2(1-6x) | | 4/x=2.4 | | 12z^3/3z^2 | | 5x+8=9x+10 | | 9g=8g+9 | | x-48=-2x | | 84x^2=14x | | 84=77.778xF | | z^2-14z=-15 | | 2+5d=2d+4d+10 | | 4k^3=32 | | 6a*ab+3ab*b*b*b= | | -3.2+2.5=1.8 | | x^2+10x-12=12 | | x+2(x-4)=24-4 | | p=18+3p | | 4(-7.6-x)=-59.2 | | 2y-6=4y+4 | | n-16=6n | | 7z=5z-2 | | 6ab+3ab=0 | | x+3=x^2+4x-7 | | 58=0.6w | | 2*ln(5x)=0 | | z^2-18z=-17 | | 2x+2(x-15)=278 | | 9u+9=6u | | z^2-10z=-11 | | 3/4z=-60 |

Equations solver categories