(x+3)*(8-2x)=0

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Solution for (x+3)*(8-2x)=0 equation:


Simplifying
(x + 3)(8 + -2x) = 0

Reorder the terms:
(3 + x)(8 + -2x) = 0

Multiply (3 + x) * (8 + -2x)
(3(8 + -2x) + x(8 + -2x)) = 0
((8 * 3 + -2x * 3) + x(8 + -2x)) = 0
((24 + -6x) + x(8 + -2x)) = 0
(24 + -6x + (8 * x + -2x * x)) = 0
(24 + -6x + (8x + -2x2)) = 0

Combine like terms: -6x + 8x = 2x
(24 + 2x + -2x2) = 0

Solving
24 + 2x + -2x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(12 + x + -1x2) = 0

Factor a trinomial.
2((4 + -1x)(3 + x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

Subproblem 2

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

Solution

x = {4, -3}

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