A=x^2+13x-90

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Solution for A=x^2+13x-90 equation: 


Simplifying
A = x2 + 13x + -90

Reorder the terms:
A = -90 + 13x + x2

Solving
A = -90 + 13x + x2

Solving for variable 'A'.

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

Simplifying
A = -90 + 13x + x2

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