y=(x-7)(x-3)

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Solution for y=(x-7)(x-3) equation: 


Simplifying
y = (x + -7)(x + -3)

Reorder the terms:
y = (-7 + x)(x + -3)

Reorder the terms:
y = (-7 + x)(-3 + x)

Multiply (-7 + x) * (-3 + x)
y = (-7(-3 + x) + x(-3 + x))
y = ((-3 * -7 + x * -7) + x(-3 + x))
y = ((21 + -7x) + x(-3 + x))
y = (21 + -7x + (-3 * x + x * x))
y = (21 + -7x + (-3x + x2))

Combine like terms: -7x + -3x = -10x
y = (21 + -10x + x2)

Solving
y = 21 + -10x + x2

Solving for variable 'y'.

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

Simplifying
y = 21 + -10x + x2

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