Exploring Imaginary and Complex Numbers

What should you do whenever you see an i squared in a complex number operation?

• Multiply it by two

• Ignore it

• Change it to negative one

• Treat it as zero

How should you treat 'i' when performing operations with complex numbers?

• As a variable

• As a fraction

• As a constant

• As a coefficient

In the expression 3 + 2i - 1 - 6i, what is the result after combining like terms?

• 1 + 7i

• 2 + 6i

• 4 + 4i

• 2 + 8i

When adding and subtracting complex numbers, what should always come second?

• The real part

• The imaginary part

• The coefficient

• The constant

What is the result of multiplying 5i by 3 - 2i?

• 10 + 15i

• 5i - 6i

• 15i + 10

• 15i - 10i

What happens to the sign when you multiply by i squared?

• It stays the same

• It becomes positive

• It becomes negative

• It doubles

In the FOIL method, what does the 'F' stand for?

• Fraction

• First

• Final

• Factor

What is the result of 2 times 2 in the FOIL method?

• 4

• 6

• 8

• 2

What is the result of 3 + 2i times 3 - 2i?

• 5

• 9 - 4i

• 13

• 7

What is a shortcut for simplifying the product of complex numbers with the same terms but different signs?

• Multiply the terms

• First term squared minus second term squared

• Subtract the terms

• Add the terms