X=(4k-1)(k+2)

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Solution for X=(4k-1)(k+2) equation:


Simplifying
X = (4k + -1)(k + 2)

Reorder the terms:
X = (-1 + 4k)(k + 2)

Reorder the terms:
X = (-1 + 4k)(2 + k)

Multiply (-1 + 4k) * (2 + k)
X = (-1(2 + k) + 4k * (2 + k))
X = ((2 * -1 + k * -1) + 4k * (2 + k))
X = ((-2 + -1k) + 4k * (2 + k))
X = (-2 + -1k + (2 * 4k + k * 4k))
X = (-2 + -1k + (8k + 4k2))

Combine like terms: -1k + 8k = 7k
X = (-2 + 7k + 4k2)

Solving
X = -2 + 7k + 4k2

Solving for variable 'X'.

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

Simplifying
X = -2 + 7k + 4k2

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