Evaluate the following:

- What is the value of XY -3X-XY^2 when X = -3, and Y = -4?
- What is the value of sqrt 2 (sqrt 12 + sqrt 18) - sqrt 3 (sqt 54 - sqrt 36) ?

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TJ test prep practice problems for our students and readers. The problems provide a very small sampling of what Optimal TJ Prep students work with.

Evaluate the following:

- What is the value of XY -3X-XY^2 when X = -3, and Y = -4?
- What is the value of sqrt 2 (sqrt 12 + sqrt 18) - sqrt 3 (sqt 54 - sqrt 36) ?