5x^2-20x=x^2+8x-49

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Solution for 5x^2-20x=x^2+8x-49 equation:


Simplifying
5x2 + -20x = x2 + 8x + -49

Reorder the terms:
-20x + 5x2 = x2 + 8x + -49

Reorder the terms:
-20x + 5x2 = -49 + 8x + x2

Solving
-20x + 5x2 = -49 + 8x + x2

Solving for variable 'x'.

Reorder the terms:
49 + -20x + -8x + 5x2 + -1x2 = -49 + 8x + x2 + 49 + -8x + -1x2

Combine like terms: -20x + -8x = -28x
49 + -28x + 5x2 + -1x2 = -49 + 8x + x2 + 49 + -8x + -1x2

Combine like terms: 5x2 + -1x2 = 4x2
49 + -28x + 4x2 = -49 + 8x + x2 + 49 + -8x + -1x2

Reorder the terms:
49 + -28x + 4x2 = -49 + 49 + 8x + -8x + x2 + -1x2

Combine like terms: -49 + 49 = 0
49 + -28x + 4x2 = 0 + 8x + -8x + x2 + -1x2
49 + -28x + 4x2 = 8x + -8x + x2 + -1x2

Combine like terms: 8x + -8x = 0
49 + -28x + 4x2 = 0 + x2 + -1x2
49 + -28x + 4x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
49 + -28x + 4x2 = 0

Factor a trinomial.
(7 + -2x)(7 + -2x) = 0

Subproblem 1

Set the factor '(7 + -2x)' equal to zero and attempt to solve: Simplifying 7 + -2x = 0 Solving 7 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -2x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2x = 0 + -7 -2x = 0 + -7 Combine like terms: 0 + -7 = -7 -2x = -7 Divide each side by '-2'. x = 3.5 Simplifying x = 3.5

Subproblem 2

Set the factor '(7 + -2x)' equal to zero and attempt to solve: Simplifying 7 + -2x = 0 Solving 7 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -2x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2x = 0 + -7 -2x = 0 + -7 Combine like terms: 0 + -7 = -7 -2x = -7 Divide each side by '-2'. x = 3.5 Simplifying x = 3.5

Solution

x = {3.5, 3.5}

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