90(300)+0.25(300-x)(x-300)=y

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Solution for 90(300)+0.25(300-x)(x-300)=y equation: 


Simplifying
90(300) + 0.25(300 + -1x)(x + -300) = y

Multiply 90 * 300
27000 + 0.25(300 + -1x)(x + -300) = y

Reorder the terms:
27000 + 0.25(300 + -1x)(-300 + x) = y

Multiply (300 + -1x) * (-300 + x)
27000 + 0.25(300(-300 + x) + -1x * (-300 + x)) = y
27000 + 0.25((-300 * 300 + x * 300) + -1x * (-300 + x)) = y
27000 + 0.25((-90000 + 300x) + -1x * (-300 + x)) = y
27000 + 0.25(-90000 + 300x + (-300 * -1x + x * -1x)) = y
27000 + 0.25(-90000 + 300x + (300x + -1x2)) = y

Combine like terms: 300x + 300x = 600x
27000 + 0.25(-90000 + 600x + -1x2) = y
27000 + (-90000 * 0.25 + 600x * 0.25 + -1x2 * 0.25) = y
27000 + (-22500 + 150x + -0.25x2) = y

Combine like terms: 27000 + -22500 = 4500
4500 + 150x + -0.25x2 = y

Solving
4500 + 150x + -0.25x2 = y

Solving for variable 'x'.

Combine like terms: y + -1y = 0
4500 + 150x + -0.25x2 + -1y = 0

The solution to this equation could not be determined.

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