3x+2+5x(x-1)=8x+17

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Solution for 3x+2+5x(x-1)=8x+17 equation:


Simplifying
3x + 2 + 5x(x + -1) = 8x + 17

Reorder the terms:
3x + 2 + 5x(-1 + x) = 8x + 17
3x + 2 + (-1 * 5x + x * 5x) = 8x + 17
3x + 2 + (-5x + 5x2) = 8x + 17

Reorder the terms:
2 + 3x + -5x + 5x2 = 8x + 17

Combine like terms: 3x + -5x = -2x
2 + -2x + 5x2 = 8x + 17

Reorder the terms:
2 + -2x + 5x2 = 17 + 8x

Solving
2 + -2x + 5x2 = 17 + 8x

Solving for variable 'x'.

Reorder the terms:
2 + -17 + -2x + -8x + 5x2 = 17 + 8x + -17 + -8x

Combine like terms: 2 + -17 = -15
-15 + -2x + -8x + 5x2 = 17 + 8x + -17 + -8x

Combine like terms: -2x + -8x = -10x
-15 + -10x + 5x2 = 17 + 8x + -17 + -8x

Reorder the terms:
-15 + -10x + 5x2 = 17 + -17 + 8x + -8x

Combine like terms: 17 + -17 = 0
-15 + -10x + 5x2 = 0 + 8x + -8x
-15 + -10x + 5x2 = 8x + -8x

Combine like terms: 8x + -8x = 0
-15 + -10x + 5x2 = 0

Factor out the Greatest Common Factor (GCF), '5'.
5(-3 + -2x + x2) = 0

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

Ignore the factor 5.

Subproblem 1

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

Subproblem 2

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

Solution

x = {-1, 3}

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