9z^2-30z+25=0

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Solution for 9z^2-30z+25=0 equation:


Simplifying
9z2 + -30z + 25 = 0

Reorder the terms:
25 + -30z + 9z2 = 0

Solving
25 + -30z + 9z2 = 0

Solving for variable 'z'.

Factor a trinomial.
(5 + -3z)(5 + -3z) = 0

Subproblem 1

Set the factor '(5 + -3z)' equal to zero and attempt to solve: Simplifying 5 + -3z = 0 Solving 5 + -3z = 0 Move all terms containing z to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -3z = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3z = 0 + -5 -3z = 0 + -5 Combine like terms: 0 + -5 = -5 -3z = -5 Divide each side by '-3'. z = 1.666666667 Simplifying z = 1.666666667

Subproblem 2

Set the factor '(5 + -3z)' equal to zero and attempt to solve: Simplifying 5 + -3z = 0 Solving 5 + -3z = 0 Move all terms containing z to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -3z = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3z = 0 + -5 -3z = 0 + -5 Combine like terms: 0 + -5 = -5 -3z = -5 Divide each side by '-3'. z = 1.666666667 Simplifying z = 1.666666667

Solution

z = {1.666666667, 1.666666667}

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