y=-2(x-2.5)(x+2.5)

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Solution for y=-2(x-2.5)(x+2.5) equation: 


Simplifying
y = -2(x + -2.5)(x + 2.5)

Reorder the terms:
y = -2(-2.5 + x)(x + 2.5)

Reorder the terms:
y = -2(-2.5 + x)(2.5 + x)

Multiply (-2.5 + x) * (2.5 + x)
y = -2(-2.5(2.5 + x) + x(2.5 + x))
y = -2((2.5 * -2.5 + x * -2.5) + x(2.5 + x))
y = -2((-6.25 + -2.5x) + x(2.5 + x))
y = -2(-6.25 + -2.5x + (2.5 * x + x * x))
y = -2(-6.25 + -2.5x + (2.5x + x2))

Combine like terms: -2.5x + 2.5x = 0.0
y = -2(-6.25 + 0.0 + x2)
y = -2(-6.25 + x2)
y = (-6.25 * -2 + x2 * -2)
y = (12.5 + -2x2)

Solving
y = 12.5 + -2x2

Solving for variable 'y'.

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

Simplifying
y = 12.5 + -2x2

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