(X)=-4(x-3)(x+5)

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Solution for (X)=-4(x-3)(x+5) equation:


Simplifying
(X) = -4(x + -3)(x + 5)
X = -4(x + -3)(x + 5)

Reorder the terms:
X = -4(-3 + x)(x + 5)

Reorder the terms:
X = -4(-3 + x)(5 + x)

Multiply (-3 + x) * (5 + x)
X = -4(-3(5 + x) + x(5 + x))
X = -4((5 * -3 + x * -3) + x(5 + x))
X = -4((-15 + -3x) + x(5 + x))
X = -4(-15 + -3x + (5 * x + x * x))
X = -4(-15 + -3x + (5x + x2))

Combine like terms: -3x + 5x = 2x
X = -4(-15 + 2x + x2)
X = (-15 * -4 + 2x * -4 + x2 * -4)
X = (60 + -8x + -4x2)

Solving
X = 60 + -8x + -4x2

Solving for variable 'X'.

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

Simplifying
X = 60 + -8x + -4x2

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