2z^2-3=-z-2

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Solution for 2z^2-3=-z-2 equation:


Simplifying
2z2 + -3 = -1z + -2

Reorder the terms:
-3 + 2z2 = -1z + -2

Reorder the terms:
-3 + 2z2 = -2 + -1z

Solving
-3 + 2z2 = -2 + -1z

Solving for variable 'z'.

Reorder the terms:
-3 + 2 + z + 2z2 = -2 + -1z + 2 + z

Combine like terms: -3 + 2 = -1
-1 + z + 2z2 = -2 + -1z + 2 + z

Reorder the terms:
-1 + z + 2z2 = -2 + 2 + -1z + z

Combine like terms: -2 + 2 = 0
-1 + z + 2z2 = 0 + -1z + z
-1 + z + 2z2 = -1z + z

Combine like terms: -1z + z = 0
-1 + z + 2z2 = 0

Factor a trinomial.
(-1 + -1z)(1 + -2z) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(1 + -2z)' equal to zero and attempt to solve: Simplifying 1 + -2z = 0 Solving 1 + -2z = 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 + -2z = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -2z = 0 + -1 -2z = 0 + -1 Combine like terms: 0 + -1 = -1 -2z = -1 Divide each side by '-2'. z = 0.5 Simplifying z = 0.5

Solution

z = {-1, 0.5}

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