X+13=(x-7)(x-7)

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Solution for X+13=(x-7)(x-7) equation:


Simplifying
X + 13 = (x + -7)(x + -7)

Reorder the terms:
13 + X = (x + -7)(x + -7)

Reorder the terms:
13 + X = (-7 + x)(x + -7)

Reorder the terms:
13 + X = (-7 + x)(-7 + x)

Multiply (-7 + x) * (-7 + x)
13 + X = (-7(-7 + x) + x(-7 + x))
13 + X = ((-7 * -7 + x * -7) + x(-7 + x))
13 + X = ((49 + -7x) + x(-7 + x))
13 + X = (49 + -7x + (-7 * x + x * x))
13 + X = (49 + -7x + (-7x + x2))

Combine like terms: -7x + -7x = -14x
13 + X = (49 + -14x + x2)

Solving
13 + X = 49 + -14x + x2

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '-13' to each side of the equation.
13 + -13 + X = 49 + -14x + -13 + x2

Combine like terms: 13 + -13 = 0
0 + X = 49 + -14x + -13 + x2
X = 49 + -14x + -13 + x2

Reorder the terms:
X = 49 + -13 + -14x + x2

Combine like terms: 49 + -13 = 36
X = 36 + -14x + x2

Simplifying
X = 36 + -14x + x2

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