Y=-(x-3)(x-7)

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


Simplifying
Y = -1(x + -3)(x + -7)

Reorder the terms:
Y = -1(-3 + x)(x + -7)

Reorder the terms:
Y = -1(-3 + x)(-7 + x)

Multiply (-3 + x) * (-7 + x)
Y = -1(-3(-7 + x) + x(-7 + x))
Y = -1((-7 * -3 + x * -3) + x(-7 + x))
Y = -1((21 + -3x) + x(-7 + x))
Y = -1(21 + -3x + (-7 * x + x * x))
Y = -1(21 + -3x + (-7x + x2))

Combine like terms: -3x + -7x = -10x
Y = -1(21 + -10x + x2)
Y = (21 * -1 + -10x * -1 + x2 * -1)
Y = (-21 + 10x + -1x2)

Solving
Y = -21 + 10x + -1x2

Solving for variable 'Y'.

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

Simplifying
Y = -21 + 10x + -1x2

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