In Exercises 1–8, add or subtract as indicated and write the result in standard form. (7 + 2i) + (1 − 4i)

In Exercises 1–10, plot each complex number and find its absolute value. z = 3 + 2i

Plot the complex number $z=2-4i$ on the graph below.

Plot the complex number $z=-i$ on the graph below.

Plot the complex number $z=5$ on the graph below.

In Exercises 1–10, perform the indicated operations and write the result in standard form. (8 − 3i) − (17 − 7i)

In Exercises 1–3, perform the indicated operations and write the result in standard form. 5 / 2−i

In Exercises 1–8, add or subtract as indicated and write the result in standard form. (3 + 2i) − (5 − 7i)

In Exercises 1–3, perform the indicated operations and write the result in standard form. ___ ___ 2√−49 + 3√−64