Add and Subtract Complex Numbers 2

0 of 4 questions completed

Questions:

–

You have already completed the quiz before. Hence you can not start it again.

Quiz is loading...

You must sign in or sign up to start the quiz.

You have to finish following quiz, to start this quiz:

Lets see your results!

Points

Score

Time

Question 1 of 4

Solve

`(4+5i)-(-4+5i)`

Question 2 of 4

Solve

`(-9+5i)-6(-1+i)`

Question 3 of 4

Solve

`(8+3i)-(2+5i)+(6-3i)`

Question 4 of 4

Solve

`(3-6i)-(9+6i)-(-1-i)`

	`(4+5i)-(-4+5i)`	Remove the parentheses.
`=`	`color(red)(4)+5i+color(red)(4)-5i`	Group the real parts together.
`=`	`color(red)(4)+color(red)(4)+5i-5i`	Simplify the real parts.
`=`	`color(red)(8)+5i-5i`	Simplify the imaginary parts.
`=`	`8`

	`(-9+5i)-6(-1+i)`	Remove the parentheses.
`=`	`color(red)(-9)+5i+color(red)(6)-6i`	Group the real parts together.
`=`	`color(red)(-3)+5i-6i`	Simplify the real parts.
`=`	`color(red)(-3)-i`	Simplify the imaginary parts.
`=`	`-3-i`

	`(8+3i)-(2+5i)+(6-3i)`	Remove the parentheses.
`=`	`color(red)(8)+3icolor(red)(-2)-5i+color(red)(6)-3i`	Group the real parts together.
`=`	`color(red)(8)color(red)(-2)+color(red)(6)+3i-5i-3i`	Simplify the real parts.
`=`	`color(red)(12)+3i-5i-3i`	Simplify the imaginary parts.
`=`	`12-5i`

	`(3-6i)-(9+6i)-(-1-i)`	Remove the parentheses.
`=`	`color(red)(3)-6i-color(red)(9)-6i+color(red)(1)+i`	Group the real parts together.
`=`	`color(red)(3)-color(red)(9)+color(red)(1)-6i-6i+i`	Simplify the real parts.
`=`	`color(red)(-5)-6i-6i+i`	Simplify the imaginary parts.
`=`	`-5-11i`