exam Maths Puzzle Numerical Ability

Please help me simplify.
x^2+6x-27/3-x. The book says the answer is -(x+9)

Read Solution (Total 0)

exam Other Question

This is a compound interest question. Thanks for any assistance.

An initial deposit of $1,000 earnes 9% interest, compounded monthly. How much will be in the account in 4.5 years.

Thanks again for your help. divide 5+ 3j over 2 + j I did the next step and came up with
10 - j5 + j6 -1 over 2^2 - (j^2)^2 I don't know if I did that right and not sure what to do next.