Answer appears to be wrong

[Davtheman2010]

Simplify the equation in the picture. My answer keeps coming out not as expected. Wondering if you could help?

Thanks

 

[Dr.Peterson]

I can't tell whether the answer is wrong without seeing the given answer. And I can't tell what you might be doing wrong without seeing your work.

Please show both.

By the way, that isn't an equation; it's an expression. Using correct words makes it easier both to think clearly and to communicate clearly.