q(2q-3)=(2q+1)(q-4)

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Solution for q(2q-3)=(2q+1)(q-4) equation:


Simplifying
q(2q + -3) = (2q + 1)(q + -4)

Reorder the terms:
q(-3 + 2q) = (2q + 1)(q + -4)
(-3 * q + 2q * q) = (2q + 1)(q + -4)
(-3q + 2q2) = (2q + 1)(q + -4)

Reorder the terms:
-3q + 2q2 = (1 + 2q)(q + -4)

Reorder the terms:
-3q + 2q2 = (1 + 2q)(-4 + q)

Multiply (1 + 2q) * (-4 + q)
-3q + 2q2 = (1(-4 + q) + 2q * (-4 + q))
-3q + 2q2 = ((-4 * 1 + q * 1) + 2q * (-4 + q))
-3q + 2q2 = ((-4 + 1q) + 2q * (-4 + q))
-3q + 2q2 = (-4 + 1q + (-4 * 2q + q * 2q))
-3q + 2q2 = (-4 + 1q + (-8q + 2q2))

Combine like terms: 1q + -8q = -7q
-3q + 2q2 = (-4 + -7q + 2q2)

Add '-2q2' to each side of the equation.
-3q + 2q2 + -2q2 = -4 + -7q + 2q2 + -2q2

Combine like terms: 2q2 + -2q2 = 0
-3q + 0 = -4 + -7q + 2q2 + -2q2
-3q = -4 + -7q + 2q2 + -2q2

Combine like terms: 2q2 + -2q2 = 0
-3q = -4 + -7q + 0
-3q = -4 + -7q

Solving
-3q = -4 + -7q

Solving for variable 'q'.

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

Add '7q' to each side of the equation.
-3q + 7q = -4 + -7q + 7q

Combine like terms: -3q + 7q = 4q
4q = -4 + -7q + 7q

Combine like terms: -7q + 7q = 0
4q = -4 + 0
4q = -4

Divide each side by '4'.
q = -1

Simplifying
q = -1

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