x^2-16=2x^2-7x+14

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Solution for x^2-16=2x^2-7x+14 equation:


Simplifying
x2 + -16 = 2x2 + -7x + 14

Reorder the terms:
-16 + x2 = 2x2 + -7x + 14

Reorder the terms:
-16 + x2 = 14 + -7x + 2x2

Solving
-16 + x2 = 14 + -7x + 2x2

Solving for variable 'x'.

Reorder the terms:
-16 + -14 + 7x + x2 + -2x2 = 14 + -7x + 2x2 + -14 + 7x + -2x2

Combine like terms: -16 + -14 = -30
-30 + 7x + x2 + -2x2 = 14 + -7x + 2x2 + -14 + 7x + -2x2

Combine like terms: x2 + -2x2 = -1x2
-30 + 7x + -1x2 = 14 + -7x + 2x2 + -14 + 7x + -2x2

Reorder the terms:
-30 + 7x + -1x2 = 14 + -14 + -7x + 7x + 2x2 + -2x2

Combine like terms: 14 + -14 = 0
-30 + 7x + -1x2 = 0 + -7x + 7x + 2x2 + -2x2
-30 + 7x + -1x2 = -7x + 7x + 2x2 + -2x2

Combine like terms: -7x + 7x = 0
-30 + 7x + -1x2 = 0 + 2x2 + -2x2
-30 + 7x + -1x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-30 + 7x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
30 + -7x + x2 = 0

Move the constant term to the right:

Add '-30' to each side of the equation.
30 + -7x + -30 + x2 = 0 + -30

Reorder the terms:
30 + -30 + -7x + x2 = 0 + -30

Combine like terms: 30 + -30 = 0
0 + -7x + x2 = 0 + -30
-7x + x2 = 0 + -30

Combine like terms: 0 + -30 = -30
-7x + x2 = -30

The x term is -7x.  Take half its coefficient (-3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
-7x + 12.25 + x2 = -30 + 12.25

Reorder the terms:
12.25 + -7x + x2 = -30 + 12.25

Combine like terms: -30 + 12.25 = -17.75
12.25 + -7x + x2 = -17.75

Factor a perfect square on the left side:
(x + -3.5)(x + -3.5) = -17.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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