Master Multiplying Complex numbers

The video tutorial explains how to multiply complex numbers using various methods such as the distributive property, FOIL method, and box method. It also covers the concept of the difference of two squares. The tutorial emphasizes the importance of writing complex numbers in the form a + bi and highlights common mistakes students make when multiplying complex numbers.

What is the result of multiplying 2 by -6i?

• 12i

• 12

• -12i

• -12

What is the value of i squared?

• i

• -1

• 1

• 0

Which of the following is the correct form for writing complex numbers?

• ab + i

• a + bi

• a - bi

• ai + b

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

• Over

• Order

• Other

• Outer

What is the result of combining 4i and 4i?

• 0

• 8i

• 16i

• 4i

What is the purpose of the box method in polynomial multiplication?

• To simplify addition

• To factor polynomials

• To divide polynomials

• To organize terms and avoid confusion

What happens to the middle terms in a difference of squares?

• They become imaginary

• They cancel out

• They double

• They remain unchanged