Y=(-1x^2+9x-2)-(9x^2-4x+4)

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Solution for Y=(-1x^2+9x-2)-(9x^2-4x+4) equation: 


Simplifying
Y = (-1x2 + 9x + -2) + -1(9x2 + -4x + 4)

Reorder the terms:
Y = (-2 + 9x + -1x2) + -1(9x2 + -4x + 4)

Remove parenthesis around (-2 + 9x + -1x2)
Y = -2 + 9x + -1x2 + -1(9x2 + -4x + 4)

Reorder the terms:
Y = -2 + 9x + -1x2 + -1(4 + -4x + 9x2)
Y = -2 + 9x + -1x2 + (4 * -1 + -4x * -1 + 9x2 * -1)
Y = -2 + 9x + -1x2 + (-4 + 4x + -9x2)

Reorder the terms:
Y = -2 + -4 + 9x + 4x + -1x2 + -9x2

Combine like terms: -2 + -4 = -6
Y = -6 + 9x + 4x + -1x2 + -9x2

Combine like terms: 9x + 4x = 13x
Y = -6 + 13x + -1x2 + -9x2

Combine like terms: -1x2 + -9x2 = -10x2
Y = -6 + 13x + -10x2

Solving
Y = -6 + 13x + -10x2

Solving for variable 'Y'.

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

Simplifying
Y = -6 + 13x + -10x2

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