y=(2x-3)(x+9)

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Solution for y=(2x-3)(x+9) equation: 


Simplifying
y = (2x + -3)(x + 9)

Reorder the terms:
y = (-3 + 2x)(x + 9)

Reorder the terms:
y = (-3 + 2x)(9 + x)

Multiply (-3 + 2x) * (9 + x)
y = (-3(9 + x) + 2x * (9 + x))
y = ((9 * -3 + x * -3) + 2x * (9 + x))
y = ((-27 + -3x) + 2x * (9 + x))
y = (-27 + -3x + (9 * 2x + x * 2x))
y = (-27 + -3x + (18x + 2x2))

Combine like terms: -3x + 18x = 15x
y = (-27 + 15x + 2x2)

Solving
y = -27 + 15x + 2x2

Solving for variable 'y'.

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

Simplifying
y = -27 + 15x + 2x2

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