Question

rationalize the numerator and simplify

3-√x+2 / 21-3x

please show workings! really need help with these :(

Answer 1

Rationalize the numerator????????????

Answer 2

or denominator!\

Answer 3

The denominator doesn't need rationalizing

Answer 4

so then how would i do this?

Answer 5

Are you sure that's the original question?

Answer 6

yeah sadly!

Answer 7

It's a stupid question

Answer 8

It's not your fault though

Answer 9

haha yeah :P the questions the teacher gives us are really difficult, i got about 20 more questions in which i need help with :(

Answer 10

I don't get what rationalize the numerator means

Answer 11

yeah same here!

Answer 12

\[\frac{3-\sqrt{x+2}}{21-3x}\]

Is that it?

Answer 13

yeah!

Answer 14

multiply top and bottom by

\[3 + \sqrt{3x+2}\]

and see what happens

Answer 15

alright thanks

Answer 16

I'm going to go watch another episode of Smallville. I'll be back later