z^2-z-56=0

Simple and best practice solution for z^2-z-56=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 z^2-z-56=0 equation:


Simplifying
z2 + -1z + -56 = 0

Reorder the terms:
-56 + -1z + z2 = 0

Solving
-56 + -1z + z2 = 0

Solving for variable 'z'.

Factor a trinomial.
(-7 + -1z)(8 + -1z) = 0

Subproblem 1

Set the factor '(-7 + -1z)' equal to zero and attempt to solve: Simplifying -7 + -1z = 0 Solving -7 + -1z = 0 Move all terms containing z to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -1z = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -1z = 0 + 7 -1z = 0 + 7 Combine like terms: 0 + 7 = 7 -1z = 7 Divide each side by '-1'. z = -7 Simplifying z = -7

Subproblem 2

Set the factor '(8 + -1z)' equal to zero and attempt to solve: Simplifying 8 + -1z = 0 Solving 8 + -1z = 0 Move all terms containing z to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1z = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1z = 0 + -8 -1z = 0 + -8 Combine like terms: 0 + -8 = -8 -1z = -8 Divide each side by '-1'. z = 8 Simplifying z = 8

Solution

z = {-7, 8}

See similar equations:

| 5y+2y=-98 | | 3x+0.02x=39.46 | | P+2=50-2(4.75) | | -6x=-72+2x | | -3(8-4x)=10-5x | | 9(3x-8)-26x=6 | | 2x^2-3x+2.25=-3.75 | | 18-3x=2x+8 | | .7(5x+3)=1.1-(x+5) | | y=-3x-11 | | x+x+(14-2x)=14 | | 6x-8=10x+7 | | 15x-14=91 | | x+x+(4x-2)=14 | | -6(4x-5)=6 | | -2x(x)+7x+15=0 | | 24-3Q=5+Q | | -2x(2)+7x+15=0 | | 2x^2-24x=72 | | 19z=57 | | (6-3.25i)(4.1+14i)= | | 5(5x-2)+10= | | 2(x-1)=4(x-3) | | 3t^2-15t-2=0 | | 29(x-1)=4(x-3) | | 25-3Q=5+Q | | 4x+18=3x+23 | | 9-4x=18+5x | | 5(x+2)=3x+32 | | v^2+8v=0 | | 19c+d+6c+4d= | | 4(8-3m)=32-8(m+2) |

Equations solver categories