simplify using positive exponents -5(9/4)^1/2

simplify using positive exponents -5(9/4)^1/2

forget how to do this

Where do I begin to solve this?

this question comes exponents 4ˆ²×-1=5ˆ×+²

1)C^3 V^9 C^-1 C^0

5g(3h^3g)^2 ; Please show all work

Please help me understand how to simplify x((1x+1)/(x+1)) to get this: x/x+1 Thank you!

3(t2)-2 -----------(fraction) t-5

i don't know how to simplify the exponent to get the answer