Adding and Subtracting Complex Numbers Explained

What are the two parts of a complex number?

• Imaginary and Rational

• Real and Rational

• Real and Imaginary

• Rational and Irrational

In the expression 5i + 8i, what is the result?

• 13

• 5i

• 8i

• 13i

When combining 5 + 2 - 3i, what is the correct result?

• 7 - 3i

• 7 + 3i

• 5 - 3i

• 2 - 3i

What should you do when you have a negative sign outside parentheses?

• Ignore it

• Distribute it

• Add it

• Subtract it

What is the result of 6i - 2 - 2i + 4i?

• 8i - 2

• 10i - 2

• 4i - 2

• 6i - 2

How should complex numbers be written?

• With real and imaginary parts combined

• Imaginary part first

• Real part first

• In any order

What is the result of combining -5 + 4 and -11 + i?

• -9 - 10i

• -9 + 10i

• -1 + 10i

• -1 - 10i

What is the result of 3 - i - 2i + 7i?

• 1 - 6i

• 1 - 4i

• 1 + 6i

• 1 + 4i

What is the correct format for writing complex numbers?

• bi + a

• a + bi

• a - bi

• bi - a

What is the result of distributing the negative in 3 - (2 - 4i)?

• 3 + 2 + 4i

• 3 - 2 - 4i

• 3 + 2 - 4i

• 3 - 2 + 4i