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Simplifying 2z2(4z2 + -6z + -40) = 0 Reorder the terms: 2z2(-40 + -6z + 4z2) = 0 (-40 * 2z2 + -6z * 2z2 + 4z2 * 2z2) = 0 (-80z2 + -12z3 + 8z4) = 0 Solving -80z2 + -12z3 + 8z4 = 0 Solving for variable 'z'. Factor out the Greatest Common Factor (GCF), '4z2'. 4z2(-20 + -3z + 2z2) = 0 Factor a trinomial. 4z2((-5 + -2z)(4 + -1z)) = 0 Ignore the factor 4.Subproblem 1
Set the factor 'z2' equal to zero and attempt to solve: Simplifying z2 = 0 Solving z2 = 0 Move all terms containing z to the left, all other terms to the right. Simplifying z2 = 0 Take the square root of each side: z = {0}Subproblem 2
Set the factor '(-5 + -2z)' equal to zero and attempt to solve: Simplifying -5 + -2z = 0 Solving -5 + -2z = 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 + -2z = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -2z = 0 + 5 -2z = 0 + 5 Combine like terms: 0 + 5 = 5 -2z = 5 Divide each side by '-2'. z = -2.5 Simplifying z = -2.5Subproblem 3
Set the factor '(4 + -1z)' equal to zero and attempt to solve: Simplifying 4 + -1z = 0 Solving 4 + -1z = 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 + -1z = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1z = 0 + -4 -1z = 0 + -4 Combine like terms: 0 + -4 = -4 -1z = -4 Divide each side by '-1'. z = 4 Simplifying z = 4Solution
z = {0, -2.5, 4}
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