3x^2-14=x^2+3x

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Solution for 3x^2-14=x^2+3x equation:


Simplifying
3x2 + -14 = x2 + 3x

Reorder the terms:
-14 + 3x2 = x2 + 3x

Reorder the terms:
-14 + 3x2 = 3x + x2

Solving
-14 + 3x2 = 3x + x2

Solving for variable 'x'.

Reorder the terms:
-14 + -3x + 3x2 + -1x2 = 3x + x2 + -3x + -1x2

Combine like terms: 3x2 + -1x2 = 2x2
-14 + -3x + 2x2 = 3x + x2 + -3x + -1x2

Reorder the terms:
-14 + -3x + 2x2 = 3x + -3x + x2 + -1x2

Combine like terms: 3x + -3x = 0
-14 + -3x + 2x2 = 0 + x2 + -1x2
-14 + -3x + 2x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-14 + -3x + 2x2 = 0

Factor a trinomial.
(-2 + -1x)(7 + -2x) = 0

Subproblem 1

Set the factor '(-2 + -1x)' equal to zero and attempt to solve: Simplifying -2 + -1x = 0 Solving -2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1x = 0 + 2 -1x = 0 + 2 Combine like terms: 0 + 2 = 2 -1x = 2 Divide each side by '-1'. x = -2 Simplifying x = -2

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 = {-2, 3.5}

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