Complex Numbers

Front

Simplify: (10+ 15i)-(48 - 30i)

Back

-38 + 45i

Front

Simplify: (7 + 2i)(9 - 6i)

Back

75-24i

Front

What does i² = ?

Back

-1

Front

Simplify
3i - (4 + 7i)

Back

-4 - 4i

Front

Find the sum.
(5-2i) + (-7+8i)

Back

-2+6i

Front

Multiply
(2i)(3i)

Back

-6

Front

Multiply
(3i)(-2+4i)

Back

-12-6i

Front

(4 – 3i)(7 + 2i)

Back

34 - 13i

Front

(2 + 3i)²

Back

-5 + 12i

Front

(-5 + 10i)(-5 - 10i) = 125

Back

True