x^2-16x+63=(x-7)(x-9)

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Solution for x^2-16x+63=(x-7)(x-9) equation:


Simplifying
x2 + -16x + 63 = (x + -7)(x + -9)

Reorder the terms:
63 + -16x + x2 = (x + -7)(x + -9)

Reorder the terms:
63 + -16x + x2 = (-7 + x)(x + -9)

Reorder the terms:
63 + -16x + x2 = (-7 + x)(-9 + x)

Multiply (-7 + x) * (-9 + x)
63 + -16x + x2 = (-7(-9 + x) + x(-9 + x))
63 + -16x + x2 = ((-9 * -7 + x * -7) + x(-9 + x))
63 + -16x + x2 = ((63 + -7x) + x(-9 + x))
63 + -16x + x2 = (63 + -7x + (-9 * x + x * x))
63 + -16x + x2 = (63 + -7x + (-9x + x2))

Combine like terms: -7x + -9x = -16x
63 + -16x + x2 = (63 + -16x + x2)

Add '-63' to each side of the equation.
63 + -16x + -63 + x2 = 63 + -16x + -63 + x2

Reorder the terms:
63 + -63 + -16x + x2 = 63 + -16x + -63 + x2

Combine like terms: 63 + -63 = 0
0 + -16x + x2 = 63 + -16x + -63 + x2
-16x + x2 = 63 + -16x + -63 + x2

Reorder the terms:
-16x + x2 = 63 + -63 + -16x + x2

Combine like terms: 63 + -63 = 0
-16x + x2 = 0 + -16x + x2
-16x + x2 = -16x + x2

Add '16x' to each side of the equation.
-16x + 16x + x2 = -16x + 16x + x2

Combine like terms: -16x + 16x = 0
0 + x2 = -16x + 16x + x2
x2 = -16x + 16x + x2

Combine like terms: -16x + 16x = 0
x2 = 0 + x2
x2 = x2

Add '-1x2' to each side of the equation.
x2 + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
0 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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