y=-(x+10)(x+8)

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Solution for y=-(x+10)(x+8) equation: 


Simplifying
y = -1(x + 10)(x + 8)

Reorder the terms:
y = -1(10 + x)(x + 8)

Reorder the terms:
y = -1(10 + x)(8 + x)

Multiply (10 + x) * (8 + x)
y = -1(10(8 + x) + x(8 + x))
y = -1((8 * 10 + x * 10) + x(8 + x))
y = -1((80 + 10x) + x(8 + x))
y = -1(80 + 10x + (8 * x + x * x))
y = -1(80 + 10x + (8x + x2))

Combine like terms: 10x + 8x = 18x
y = -1(80 + 18x + x2)
y = (80 * -1 + 18x * -1 + x2 * -1)
y = (-80 + -18x + -1x2)

Solving
y = -80 + -18x + -1x2

Solving for variable 'y'.

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

Simplifying
y = -80 + -18x + -1x2

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