(z-2)(z+3)=z*2+6

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Solution for (z-2)(z+3)=z*2+6 equation:


Simplifying
(z + -2)(z + 3) = z * 2 + 6

Reorder the terms:
(-2 + z)(z + 3) = z * 2 + 6

Reorder the terms:
(-2 + z)(3 + z) = z * 2 + 6

Multiply (-2 + z) * (3 + z)
(-2(3 + z) + z(3 + z)) = z * 2 + 6
((3 * -2 + z * -2) + z(3 + z)) = z * 2 + 6
((-6 + -2z) + z(3 + z)) = z * 2 + 6
(-6 + -2z + (3 * z + z * z)) = z * 2 + 6
(-6 + -2z + (3z + z2)) = z * 2 + 6

Combine like terms: -2z + 3z = 1z
(-6 + 1z + z2) = z * 2 + 6

Reorder the terms for easier multiplication:
-6 + 1z + z2 = 2z + 6

Reorder the terms:
-6 + 1z + z2 = 6 + 2z

Solving
-6 + 1z + z2 = 6 + 2z

Solving for variable 'z'.

Reorder the terms:
-6 + -6 + 1z + -2z + z2 = 6 + 2z + -6 + -2z

Combine like terms: -6 + -6 = -12
-12 + 1z + -2z + z2 = 6 + 2z + -6 + -2z

Combine like terms: 1z + -2z = -1z
-12 + -1z + z2 = 6 + 2z + -6 + -2z

Reorder the terms:
-12 + -1z + z2 = 6 + -6 + 2z + -2z

Combine like terms: 6 + -6 = 0
-12 + -1z + z2 = 0 + 2z + -2z
-12 + -1z + z2 = 2z + -2z

Combine like terms: 2z + -2z = 0
-12 + -1z + z2 = 0

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

Subproblem 1

Set the factor '(-3 + -1z)' equal to zero and attempt to solve: Simplifying -3 + -1z = 0 Solving -3 + -1z = 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 + -1z = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1z = 0 + 3 -1z = 0 + 3 Combine like terms: 0 + 3 = 3 -1z = 3 Divide each side by '-1'. z = -3 Simplifying z = -3

Subproblem 2

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 = 4

Solution

z = {-3, 4}

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