Y=16+(X-4)*(X+4)

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Solution for Y=16+(X-4)*(X+4) equation: 


Simplifying
Y = 16 + (X + -4)(X + 4)

Reorder the terms:
Y = 16 + (-4 + X)(X + 4)

Reorder the terms:
Y = 16 + (-4 + X)(4 + X)

Multiply (-4 + X) * (4 + X)
Y = 16 + (-4(4 + X) + X(4 + X))
Y = 16 + ((4 * -4 + X * -4) + X(4 + X))
Y = 16 + ((-16 + -4X) + X(4 + X))
Y = 16 + (-16 + -4X + (4 * X + X * X))
Y = 16 + (-16 + -4X + (4X + X2))

Combine like terms: -4X + 4X = 0
Y = 16 + (-16 + 0 + X2)
Y = 16 + (-16 + X2)

Combine like terms: 16 + -16 = 0
Y = 0 + X2
Y = X2

Solving
Y = X2

Solving for variable 'Y'.

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

Simplifying
Y = X2

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