96z^2+40z-84=0

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Solution for 96z^2+40z-84=0 equation:


Simplifying
96z2 + 40z + -84 = 0

Reorder the terms:
-84 + 40z + 96z2 = 0

Solving
-84 + 40z + 96z2 = 0

Solving for variable 'z'.

Factor out the Greatest Common Factor (GCF), '4'.
4(-21 + 10z + 24z2) = 0

Factor a trinomial.
4((-7 + -6z)(3 + -4z)) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-7 + -6z)' equal to zero and attempt to solve: Simplifying -7 + -6z = 0 Solving -7 + -6z = 0 Move all terms containing z to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -6z = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -6z = 0 + 7 -6z = 0 + 7 Combine like terms: 0 + 7 = 7 -6z = 7 Divide each side by '-6'. z = -1.166666667 Simplifying z = -1.166666667

Subproblem 2

Set the factor '(3 + -4z)' equal to zero and attempt to solve: Simplifying 3 + -4z = 0 Solving 3 + -4z = 0 Move all terms containing z to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -4z = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -4z = 0 + -3 -4z = 0 + -3 Combine like terms: 0 + -3 = -3 -4z = -3 Divide each side by '-4'. z = 0.75 Simplifying z = 0.75

Solution

z = {-1.166666667, 0.75}

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