-2z^2-50z=82

Simple and best practice solution for -2z^2-50z=82 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 -2z^2-50z=82 equation:


Simplifying
-2z2 + -50z = 82

Reorder the terms:
-50z + -2z2 = 82

Solving
-50z + -2z2 = 82

Solving for variable 'z'.

Reorder the terms:
-82 + -50z + -2z2 = 82 + -82

Combine like terms: 82 + -82 = 0
-82 + -50z + -2z2 = 0

Factor out the Greatest Common Factor (GCF), '-2'.
-2(41 + 25z + z2) = 0

Ignore the factor -2.

Subproblem 1

Set the factor '(41 + 25z + z2)' equal to zero and attempt to solve: Simplifying 41 + 25z + z2 = 0 Solving 41 + 25z + z2 = 0 Begin completing the square. Move the constant term to the right: Add '-41' to each side of the equation. 41 + 25z + -41 + z2 = 0 + -41 Reorder the terms: 41 + -41 + 25z + z2 = 0 + -41 Combine like terms: 41 + -41 = 0 0 + 25z + z2 = 0 + -41 25z + z2 = 0 + -41 Combine like terms: 0 + -41 = -41 25z + z2 = -41 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 = -41 + 156.25 Reorder the terms: 156.25 + 25z + z2 = -41 + 156.25 Combine like terms: -41 + 156.25 = 115.25 156.25 + 25z + z2 = 115.25 Factor a perfect square on the left side: (z + 12.5)(z + 12.5) = 115.25 Calculate the square root of the right side: 10.735455277 Break this problem into two subproblems by setting (z + 12.5) equal to 10.735455277 and -10.735455277.

Subproblem 1

z + 12.5 = 10.735455277 Simplifying z + 12.5 = 10.735455277 Reorder the terms: 12.5 + z = 10.735455277 Solving 12.5 + z = 10.735455277 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 = 10.735455277 + -12.5 Combine like terms: 12.5 + -12.5 = 0.0 0.0 + z = 10.735455277 + -12.5 z = 10.735455277 + -12.5 Combine like terms: 10.735455277 + -12.5 = -1.764544723 z = -1.764544723 Simplifying z = -1.764544723

Subproblem 2

z + 12.5 = -10.735455277 Simplifying z + 12.5 = -10.735455277 Reorder the terms: 12.5 + z = -10.735455277 Solving 12.5 + z = -10.735455277 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 = -10.735455277 + -12.5 Combine like terms: 12.5 + -12.5 = 0.0 0.0 + z = -10.735455277 + -12.5 z = -10.735455277 + -12.5 Combine like terms: -10.735455277 + -12.5 = -23.235455277 z = -23.235455277 Simplifying z = -23.235455277

Solution

The solution to the problem is based on the solutions from the subproblems. z = {-1.764544723, -23.235455277}

Solution

z = {-1.764544723, -23.235455277}

See similar equations:

| -3.5-2x=3.7 | | 2w-30=w+81 | | x+(-5)=16 | | 9y+1x=1 | | x-55=-5x+71 | | 5(x+5)=7x+4-2x+21 | | 1+(-2p)+5=4p+6 | | 9y-4=3y+4-2y | | 303=45+6x | | p^2+26p-19=0 | | X+y=10.85 | | 12y+1=2y+41 | | 6a+7a=-13 | | [(24-5)+(24+6)]= | | (x-1)(x-(2+i))= | | 4x+3-x=-2x+4-5x | | 87+3(s+7)-21=36 | | -75+5x=72+12x | | 3a-2+4a=-2a+3 | | g^2-12g=29 | | (x-1)(x-(2+i))(x-(2-i))= | | 3X^2+13x-9=0 | | 12(x+8)-6(x+3)=1+x+x-3 | | -3x-60=-12x+57 | | -2y+3-4y=3y-3-2y | | 9-6=x+2 | | R^2+16r+48=9 | | 2s^2+44s-58=0 | | 3x+6(1.08333333)=-6 | | 4y+y+30=8y+30-5y | | (6x+9h)(6x+9h)= | | [(2x-5)+(2x+6)]= |

Equations solver categories