Question

@youngjuvie

Answer 1

Math help

Answer 2

What is the question?

Answer 3

To simplify the radical below, which of the following expressions would be multiplied by the radical?

Answer 4

https://media.education2020.com/evresources/2003-04-05-00-00_files/i0080000.jpg

Answer 5

thats the question

Answer 6

A. https://media.education2020.com/evresources/2003-04-05-00-00_files/i0080001.jpg

B . https://media.education2020.com/evresources/2003-04-05-00-00_files/i0080002.jpg

C. https://media.education2020.com/evresources/2003-04-05-00-00_files/i0080003.jpg

D. https://media.education2020.com/evresources/2003-04-05-00-00_files/i0080004.jpg

Answer 7

In order to simplify the expression, you need to multiply the denominator and numerator by the denominators complex conjugate. Do you know how to find the complex conjugate of \[-4-\sqrt{12}\]

Answer 8

No clue

Answer 9

The complex conjugate would be the same equation but instead of adding it would be subtracting and vise versa. Do you get it?

Answer 10

yea

Answer 11

The complex conjugate is \[-4+\sqrt{12}\] This expression needs to be multiplied by both the numerator and denominator of the original expression. What you should get is
\[\frac{ 2\sqrt{15} }{ (-4-\sqrt{12)} }*\frac{ (-4+\sqrt{12} }{ (-4+\sqrt{12)} }\]

Answer 12

so the answer is -4+sqrt 12?

Answer 13

yes as long as it is in the numerator and denominator

Answer 14

okay cool

Answer 15

ty

Answer 16

your welcome