y=x^2+20x-90

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Solution for y=x^2+20x-90 equation: 


Simplifying
y = x2 + 20x + -90

Reorder the terms:
y = -90 + 20x + x2

Solving
y = -90 + 20x + x2

Solving for variable 'y'.

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

Simplifying
y = -90 + 20x + x2

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