Area=(x+3)(x+3)

Solution for Area=(x+3)(x+3) equation:

Simplifying
Area = (x + 3)(x + 3)

Reorder the terms:
aerA = (3 + x)(x + 3)

Reorder the terms:
aerA = (3 + x)(3 + x)

Multiply (3 + x) * (3 + x)
aerA = (3(3 + x) + x(3 + x))
aerA = ((3 * 3 + x * 3) + x(3 + x))
aerA = ((9 + 3x) + x(3 + x))
aerA = (9 + 3x + (3 * x + x * x))
aerA = (9 + 3x + (3x + x2))

Combine like terms: 3x + 3x = 6x
aerA = (9 + 6x + x2)

Solving
aerA = 9 + 6x + x2

Solving for variable 'a'.

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

Divide each side by 'erA'.
a = 9e-1r-1A-1 + 6e-1r-1xA-1 + e-1r-1x2A-1

Simplifying
a = 9e-1r-1A-1 + 6e-1r-1xA-1 + e-1r-1x2A-1