(3*x+a)*(3*x+b)=ab

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Solution for (3*x+a)*(3*x+b)=ab equation:


Simplifying
(3x + a)(3x + b) = ab

Reorder the terms:
(a + 3x)(3x + b) = ab

Reorder the terms:
(a + 3x)(b + 3x) = ab

Multiply (a + 3x) * (b + 3x)
(a(b + 3x) + 3x * (b + 3x)) = ab
((b * a + 3x * a) + 3x * (b + 3x)) = ab
((ab + 3ax) + 3x * (b + 3x)) = ab
(ab + 3ax + (b * 3x + 3x * 3x)) = ab
(ab + 3ax + (3bx + 9x2)) = ab
(ab + 3ax + 3bx + 9x2) = ab

Add '-1ab' to each side of the equation.
ab + 3ax + 3bx + -1ab + 9x2 = ab + -1ab

Reorder the terms:
ab + -1ab + 3ax + 3bx + 9x2 = ab + -1ab

Combine like terms: ab + -1ab = 0
0 + 3ax + 3bx + 9x2 = ab + -1ab
3ax + 3bx + 9x2 = ab + -1ab

Combine like terms: ab + -1ab = 0
3ax + 3bx + 9x2 = 0

Solving
3ax + 3bx + 9x2 = 0

Solving for variable 'a'.

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

Add '-3bx' to each side of the equation.
3ax + 3bx + -3bx + 9x2 = 0 + -3bx

Combine like terms: 3bx + -3bx = 0
3ax + 0 + 9x2 = 0 + -3bx
3ax + 9x2 = 0 + -3bx
Remove the zero:
3ax + 9x2 = -3bx

Add '-9x2' to each side of the equation.
3ax + 9x2 + -9x2 = -3bx + -9x2

Combine like terms: 9x2 + -9x2 = 0
3ax + 0 = -3bx + -9x2
3ax = -3bx + -9x2

Divide each side by '3x'.
a = -1b + -3x

Simplifying
a = -1b + -3x

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