z^2-25z=-48

Simple and best practice solution for z^2-25z=-48 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^2-25z=-48 equation:


Simplifying
z2 + -25z = -48

Reorder the terms:
-25z + z2 = -48

Solving
-25z + z2 = -48

Solving for variable 'z'.

Reorder the terms:
48 + -25z + z2 = -48 + 48

Combine like terms: -48 + 48 = 0
48 + -25z + z2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-48' to each side of the equation.
48 + -25z + -48 + z2 = 0 + -48

Reorder the terms:
48 + -48 + -25z + z2 = 0 + -48

Combine like terms: 48 + -48 = 0
0 + -25z + z2 = 0 + -48
-25z + z2 = 0 + -48

Combine like terms: 0 + -48 = -48
-25z + z2 = -48

The z term is -25z.  Take half its coefficient (-12.5).
Square it (156.25) and add it to both sides.

Add '156.25' to each side of the equation.
-25z + 156.25 + z2 = -48 + 156.25

Reorder the terms:
156.25 + -25z + z2 = -48 + 156.25

Combine like terms: -48 + 156.25 = 108.25
156.25 + -25z + z2 = 108.25

Factor a perfect square on the left side:
(z + -12.5)(z + -12.5) = 108.25

Calculate the square root of the right side: 10.404326023

Break this problem into two subproblems by setting 
(z + -12.5) equal to 10.404326023 and -10.404326023.

Subproblem 1

z + -12.5 = 10.404326023 Simplifying z + -12.5 = 10.404326023 Reorder the terms: -12.5 + z = 10.404326023 Solving -12.5 + z = 10.404326023 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '12.5' to each side of the equation. -12.5 + 12.5 + z = 10.404326023 + 12.5 Combine like terms: -12.5 + 12.5 = 0.0 0.0 + z = 10.404326023 + 12.5 z = 10.404326023 + 12.5 Combine like terms: 10.404326023 + 12.5 = 22.904326023 z = 22.904326023 Simplifying z = 22.904326023

Subproblem 2

z + -12.5 = -10.404326023 Simplifying z + -12.5 = -10.404326023 Reorder the terms: -12.5 + z = -10.404326023 Solving -12.5 + z = -10.404326023 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '12.5' to each side of the equation. -12.5 + 12.5 + z = -10.404326023 + 12.5 Combine like terms: -12.5 + 12.5 = 0.0 0.0 + z = -10.404326023 + 12.5 z = -10.404326023 + 12.5 Combine like terms: -10.404326023 + 12.5 = 2.095673977 z = 2.095673977 Simplifying z = 2.095673977

Solution

The solution to the problem is based on the solutions from the subproblems. z = {22.904326023, 2.095673977}

See similar equations:

| -3(-3x+3)=-36 | | B-(-6)=0 | | 3n=2n+1 | | 8x+8+5(x+2)+6= | | 6n^2+37n+455= | | 75.77+x=84.45 | | 4/3x-6=7/3x | | 5-2y=6x-3 | | 53x=530 | | y=2(8)+36 | | 91-115=-6(-6y)-19(2y)+y | | 8x-8=x+6 | | 14x^3-12x^2-48x=0 | | 5-2y=6x-4 | | 0.15x=142.5 | | 10n^2-65n-345=0 | | 3.2x+4.5+3-2=-2.2+5x-7 | | 3b^3+24b^2+45=0 | | 6=12s | | y=2(4)+36 | | 0.40x+0.75(40)=0.20(124) | | 44=2x+36 | | y^2+1y+0.25=0 | | 1+9=7y | | y=2(2)+36 | | 36=4x+36 | | 97.30=3x+2.5y | | 2x-10/5=-14 | | 107x-7=107 | | 3+2a=5a-9 | | 7x-107=n | | x^2+6.5x+10.5625=0 |

Equations solver categories