(x+9)(x-4)=y

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Solution for (x+9)(x-4)=y equation:


Simplifying
(x + 9)(x + -4) = y

Reorder the terms:
(9 + x)(x + -4) = y

Reorder the terms:
(9 + x)(-4 + x) = y

Multiply (9 + x) * (-4 + x)
(9(-4 + x) + x(-4 + x)) = y
((-4 * 9 + x * 9) + x(-4 + x)) = y
((-36 + 9x) + x(-4 + x)) = y
(-36 + 9x + (-4 * x + x * x)) = y
(-36 + 9x + (-4x + x2)) = y

Combine like terms: 9x + -4x = 5x
(-36 + 5x + x2) = y

Solving
-36 + 5x + x2 = y

Solving for variable 'x'.

Combine like terms: y + -1y = 0
-36 + 5x + x2 + -1y = 0

The solution to this equation could not be determined.

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