From the question before, I got to 18+6*SQRT5+6*SQRT5+12 am I on the right track or did I make a mistake somwhere?

Did you foil correctly? I'm not sure what your equation is.

(3*SQRT2+2*SQRT3)(3*SQRT2+2*SQRT3)

Does this help?

then it should have been

18 + 6√6 + 6√6 + 12
= 30 + 12√6

did it have an X in it?

No there was no X, but I accidentally did 2+3 instead of 2*3. Just a dumb mistake. Thanks.

To determine if you are on the right track or if there is a mistake in your expression, let's break it down step by step:

The expression is: 18 + 6 * SQRT(5) + 6 * SQRT(5) + 12.

1. Start by simplifying the multiplication. Multiply 6 by SQRT(5): 6 * SQRT(5) = 6 * √5 = 6√5.

So far, the expression becomes: 18 + 6√5 + 6√5 + 12.

2. Combine like terms. The terms 6√5 and 6√5 are like terms, so add them together: 6√5 + 6√5 = 12√5.

Now, the expression is: 18 + 12√5 + 12.

3. Continue to simplify by adding the remaining numbers: 18 + 12√5 + 12 = 30 + 12√5.

Final Answer: The simplified expression is 30 + 12√5.

Therefore, if your expression matches this result, you are on the right track. If it differs, you might have made a mistake during the calculations.