x(5x+8)=2x^2-2x+25

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Solution for x(5x+8)=2x^2-2x+25 equation:


Simplifying
x(5x + 8) = 2x2 + -2x + 25

Reorder the terms:
x(8 + 5x) = 2x2 + -2x + 25
(8 * x + 5x * x) = 2x2 + -2x + 25
(8x + 5x2) = 2x2 + -2x + 25

Reorder the terms:
8x + 5x2 = 25 + -2x + 2x2

Solving
8x + 5x2 = 25 + -2x + 2x2

Solving for variable 'x'.

Reorder the terms:
-25 + 8x + 2x + 5x2 + -2x2 = 25 + -2x + 2x2 + -25 + 2x + -2x2

Combine like terms: 8x + 2x = 10x
-25 + 10x + 5x2 + -2x2 = 25 + -2x + 2x2 + -25 + 2x + -2x2

Combine like terms: 5x2 + -2x2 = 3x2
-25 + 10x + 3x2 = 25 + -2x + 2x2 + -25 + 2x + -2x2

Reorder the terms:
-25 + 10x + 3x2 = 25 + -25 + -2x + 2x + 2x2 + -2x2

Combine like terms: 25 + -25 = 0
-25 + 10x + 3x2 = 0 + -2x + 2x + 2x2 + -2x2
-25 + 10x + 3x2 = -2x + 2x + 2x2 + -2x2

Combine like terms: -2x + 2x = 0
-25 + 10x + 3x2 = 0 + 2x2 + -2x2
-25 + 10x + 3x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-25 + 10x + 3x2 = 0

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

Subproblem 1

Set the factor '(-5 + -1x)' equal to zero and attempt to solve: Simplifying -5 + -1x = 0 Solving -5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -1x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1x = 0 + 5 -1x = 0 + 5 Combine like terms: 0 + 5 = 5 -1x = 5 Divide each side by '-1'. x = -5 Simplifying x = -5

Subproblem 2

Set the factor '(5 + -3x)' equal to zero and attempt to solve: Simplifying 5 + -3x = 0 Solving 5 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -3x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3x = 0 + -5 -3x = 0 + -5 Combine like terms: 0 + -5 = -5 -3x = -5 Divide each side by '-3'. x = 1.666666667 Simplifying x = 1.666666667

Solution

x = {-5, 1.666666667}

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