2z^2+15z=8

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Solution for 2z^2+15z=8 equation:


Simplifying
2z2 + 15z = 8

Reorder the terms:
15z + 2z2 = 8

Solving
15z + 2z2 = 8

Solving for variable 'z'.

Reorder the terms:
-8 + 15z + 2z2 = 8 + -8

Combine like terms: 8 + -8 = 0
-8 + 15z + 2z2 = 0

Factor a trinomial.
(-8 + -1z)(1 + -2z) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(1 + -2z)' equal to zero and attempt to solve: Simplifying 1 + -2z = 0 Solving 1 + -2z = 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 + -2z = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -2z = 0 + -1 -2z = 0 + -1 Combine like terms: 0 + -1 = -1 -2z = -1 Divide each side by '-2'. z = 0.5 Simplifying z = 0.5

Solution

z = {-8, 0.5}

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