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

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


Simplifying
(3a + -1b) * 2 + -4(a + b) = 0

Reorder the terms for easier multiplication:
2(3a + -1b) + -4(a + b) = 0
(3a * 2 + -1b * 2) + -4(a + b) = 0
(6a + -2b) + -4(a + b) = 0
6a + -2b + (a * -4 + b * -4) = 0
6a + -2b + (-4a + -4b) = 0

Reorder the terms:
6a + -4a + -2b + -4b = 0

Combine like terms: 6a + -4a = 2a
2a + -2b + -4b = 0

Combine like terms: -2b + -4b = -6b
2a + -6b = 0

Solving
2a + -6b = 0

Solving for variable 'a'.

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

Add '6b' to each side of the equation.
2a + -6b + 6b = 0 + 6b

Combine like terms: -6b + 6b = 0
2a + 0 = 0 + 6b
2a = 0 + 6b
Remove the zero:
2a = 6b

Divide each side by '2'.
a = 3b

Simplifying
a = 3b

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