3a^2-n+4b^2=(3a-2b)(a-2b)

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Solution for 3a^2-n+4b^2=(3a-2b)(a-2b) equation:


Simplifying
3a2 + -1n + 4b2 = (3a + -2b)(a + -2b)

Reorder the terms:
3a2 + 4b2 + -1n = (3a + -2b)(a + -2b)

Multiply (3a + -2b) * (a + -2b)
3a2 + 4b2 + -1n = (3a * (a + -2b) + -2b * (a + -2b))
3a2 + 4b2 + -1n = ((a * 3a + -2b * 3a) + -2b * (a + -2b))

Reorder the terms:
3a2 + 4b2 + -1n = ((-6ab + 3a2) + -2b * (a + -2b))
3a2 + 4b2 + -1n = ((-6ab + 3a2) + -2b * (a + -2b))
3a2 + 4b2 + -1n = (-6ab + 3a2 + (a * -2b + -2b * -2b))
3a2 + 4b2 + -1n = (-6ab + 3a2 + (-2ab + 4b2))

Reorder the terms:
3a2 + 4b2 + -1n = (-6ab + -2ab + 3a2 + 4b2)

Combine like terms: -6ab + -2ab = -8ab
3a2 + 4b2 + -1n = (-8ab + 3a2 + 4b2)

Add '-3a2' to each side of the equation.
3a2 + 4b2 + -3a2 + -1n = -8ab + 3a2 + -3a2 + 4b2

Reorder the terms:
3a2 + -3a2 + 4b2 + -1n = -8ab + 3a2 + -3a2 + 4b2

Combine like terms: 3a2 + -3a2 = 0
0 + 4b2 + -1n = -8ab + 3a2 + -3a2 + 4b2
4b2 + -1n = -8ab + 3a2 + -3a2 + 4b2

Combine like terms: 3a2 + -3a2 = 0
4b2 + -1n = -8ab + 0 + 4b2
4b2 + -1n = -8ab + 4b2

Add '-4b2' to each side of the equation.
4b2 + -4b2 + -1n = -8ab + 4b2 + -4b2

Combine like terms: 4b2 + -4b2 = 0
0 + -1n = -8ab + 4b2 + -4b2
-1n = -8ab + 4b2 + -4b2

Combine like terms: 4b2 + -4b2 = 0
-1n = -8ab + 0
-1n = -8ab

Solving
-1n = -8ab

Solving for variable 'n'.

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

Divide each side by '-1'.
n = 8ab

Simplifying
n = 8ab

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