y=-(x^2+4x-9)

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Solution for y=-(x^2+4x-9) equation: 


Simplifying
y = -1(x2 + 4x + -9)

Reorder the terms:
y = -1(-9 + 4x + x2)
y = (-9 * -1 + 4x * -1 + x2 * -1)
y = (9 + -4x + -1x2)

Solving
y = 9 + -4x + -1x2

Solving for variable 'y'.

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

Simplifying
y = 9 + -4x + -1x2

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