9z^2+6z=8

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Solution for 9z^2+6z=8 equation:


Simplifying
9z2 + 6z = 8

Reorder the terms:
6z + 9z2 = 8

Solving
6z + 9z2 = 8

Solving for variable 'z'.

Reorder the terms:
-8 + 6z + 9z2 = 8 + -8

Combine like terms: 8 + -8 = 0
-8 + 6z + 9z2 = 0

Factor a trinomial.
(-4 + -3z)(2 + -3z) = 0

Subproblem 1

Set the factor '(-4 + -3z)' equal to zero and attempt to solve: Simplifying -4 + -3z = 0 Solving -4 + -3z = 0 Move all terms containing z to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -3z = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -3z = 0 + 4 -3z = 0 + 4 Combine like terms: 0 + 4 = 4 -3z = 4 Divide each side by '-3'. z = -1.333333333 Simplifying z = -1.333333333

Subproblem 2

Set the factor '(2 + -3z)' equal to zero and attempt to solve: Simplifying 2 + -3z = 0 Solving 2 + -3z = 0 Move all terms containing z to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -3z = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -3z = 0 + -2 -3z = 0 + -2 Combine like terms: 0 + -2 = -2 -3z = -2 Divide each side by '-3'. z = 0.6666666667 Simplifying z = 0.6666666667

Solution

z = {-1.333333333, 0.6666666667}

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