x^2=7(x-2)

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Solution for x^2=7(x-2) equation:


Simplifying
x2 = 7(x + -2)

Reorder the terms:
x2 = 7(-2 + x)
x2 = (-2 * 7 + x * 7)
x2 = (-14 + 7x)

Solving
x2 = -14 + 7x

Solving for variable 'x'.

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

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

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

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

Begin completing the square.

Move the constant term to the right:

Add '-14' to each side of the equation.
14 + -7x + -14 + x2 = 0 + -14

Reorder the terms:
14 + -14 + -7x + x2 = 0 + -14

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

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

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 = -14 + 12.25

Reorder the terms:
12.25 + -7x + x2 = -14 + 12.25

Combine like terms: -14 + 12.25 = -1.75
12.25 + -7x + x2 = -1.75

Factor a perfect square on the left side:
(x + -3.5)(x + -3.5) = -1.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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