0. Review of College Algebra

Identify the real and imaginary parts of each complex number.

$-4-9i$

Identify the real and imaginary parts of each complex number.

$3+2i\sqrt3$

Write the complex number in standard form.

$\frac{9+\sqrt{-16}}{3}$

Find the difference. Express your answer in standard form.

$\left(2+8i\right)-\left(4-i\right)$

In Exercises 9–20, find each product and write the result in standard form.

(3 + 5i)(3 − 5i)

In Exercises 21–28, divide and express the result in standard form.

3 / 4+i

In Exercises 21–28, divide and express the result in standard form.

2+3i / 2+i

In Exercises 29–36, simplify and write the result in standard form.

√−196