Use the properties of exponents to simplify the expression

Question

16. Determine which of the following is not a real number.

A) –7^1/2

B) (–7^1/2)

C) (–7)^1/2

D) –(7^1/2)

18. Use the properties of exponents to simplify the expression.  Assume all variables represent positive real numbers.

(8x⁹y¹⁸)^1/3

20. Write the expression in radical form.  Do not simplify.

21. True or False:  The imaginary part of the complex number 2 + 3i is i.

23. Perform the indicated operations.

(3 + 2i) + (4 –7i)

24. Find the product.  Write your answer in standard form.

(2 + 10i)(4 – i)