2x^2+14x+49=9x^2-42x+49

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Solution for 2x^2+14x+49=9x^2-42x+49 equation:


Simplifying
2x2 + 14x + 49 = 9x2 + -42x + 49

Reorder the terms:
49 + 14x + 2x2 = 9x2 + -42x + 49

Reorder the terms:
49 + 14x + 2x2 = 49 + -42x + 9x2

Add '-49' to each side of the equation.
49 + 14x + -49 + 2x2 = 49 + -42x + -49 + 9x2

Reorder the terms:
49 + -49 + 14x + 2x2 = 49 + -42x + -49 + 9x2

Combine like terms: 49 + -49 = 0
0 + 14x + 2x2 = 49 + -42x + -49 + 9x2
14x + 2x2 = 49 + -42x + -49 + 9x2

Reorder the terms:
14x + 2x2 = 49 + -49 + -42x + 9x2

Combine like terms: 49 + -49 = 0
14x + 2x2 = 0 + -42x + 9x2
14x + 2x2 = -42x + 9x2

Solving
14x + 2x2 = -42x + 9x2

Solving for variable 'x'.

Reorder the terms:
14x + 42x + 2x2 + -9x2 = -42x + 9x2 + 42x + -9x2

Combine like terms: 14x + 42x = 56x
56x + 2x2 + -9x2 = -42x + 9x2 + 42x + -9x2

Combine like terms: 2x2 + -9x2 = -7x2
56x + -7x2 = -42x + 9x2 + 42x + -9x2

Reorder the terms:
56x + -7x2 = -42x + 42x + 9x2 + -9x2

Combine like terms: -42x + 42x = 0
56x + -7x2 = 0 + 9x2 + -9x2
56x + -7x2 = 9x2 + -9x2

Combine like terms: 9x2 + -9x2 = 0
56x + -7x2 = 0

Factor out the Greatest Common Factor (GCF), '7x'.
7x(8 + -1x) = 0

Ignore the factor 7.

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

Set the factor '(8 + -1x)' equal to zero and attempt to solve: Simplifying 8 + -1x = 0 Solving 8 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1x = 0 + -8 -1x = 0 + -8 Combine like terms: 0 + -8 = -8 -1x = -8 Divide each side by '-1'. x = 8 Simplifying x = 8

Solution

x = {0, 8}

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