20z^2+11z-3=0

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Solution for 20z^2+11z-3=0 equation:


Simplifying
20z2 + 11z + -3 = 0

Reorder the terms:
-3 + 11z + 20z2 = 0

Solving
-3 + 11z + 20z2 = 0

Solving for variable 'z'.

Factor a trinomial.
(-3 + -4z)(1 + -5z) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(1 + -5z)' equal to zero and attempt to solve: Simplifying 1 + -5z = 0 Solving 1 + -5z = 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 + -5z = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -5z = 0 + -1 -5z = 0 + -1 Combine like terms: 0 + -1 = -1 -5z = -1 Divide each side by '-5'. z = 0.2 Simplifying z = 0.2

Solution

z = {-0.75, 0.2}

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