(5-x)(5-x)+3x(5-x)=y

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Solution for (5-x)(5-x)+3x(5-x)=y equation: 


Simplifying
(5 + -1x)(5 + -1x) + 3x(5 + -1x) = y

Multiply (5 + -1x) * (5 + -1x)
(5(5 + -1x) + -1x * (5 + -1x)) + 3x(5 + -1x) = y
((5 * 5 + -1x * 5) + -1x * (5 + -1x)) + 3x(5 + -1x) = y
((25 + -5x) + -1x * (5 + -1x)) + 3x(5 + -1x) = y
(25 + -5x + (5 * -1x + -1x * -1x)) + 3x(5 + -1x) = y
(25 + -5x + (-5x + 1x2)) + 3x(5 + -1x) = y

Combine like terms: -5x + -5x = -10x
(25 + -10x + 1x2) + 3x(5 + -1x) = y
25 + -10x + 1x2 + (5 * 3x + -1x * 3x) = y
25 + -10x + 1x2 + (15x + -3x2) = y

Reorder the terms:
25 + -10x + 15x + 1x2 + -3x2 = y

Combine like terms: -10x + 15x = 5x
25 + 5x + 1x2 + -3x2 = y

Combine like terms: 1x2 + -3x2 = -2x2
25 + 5x + -2x2 = y

Solving
25 + 5x + -2x2 = y

Solving for variable 'x'.

Combine like terms: y + -1y = 0
25 + 5x + -2x2 + -1y = 0

The solution to this equation could not be determined.

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