Question

Can someone PLEASE show me how to do
2√u(√5 + 3√45) ?

Answer 1

First simplify sqrt45

Answer 2

What did you get?

Answer 3

√9√5 ?

Answer 4

And what is sqrt9?

Answer 5

3

Answer 6

So you need to multiply it by the coefficient 3 and get 9sqrt5

Answer 7

Now inside the parentheses you have similar radicals so add them together.

Answer 8

What do you get?

Answer 9

Wait so now would the expression look like this?... 2√u ( √5 + 3√5) ?

Answer 10

No. What happened to the 3?

Answer 11

It turned to a 9 ah ok so then

Answer 12

2√u (10√5)

Answer 13

\[3\sqrt{45}=3\sqrt{(9)(5)}=3(3)\sqrt{5}=9\sqrt{5}\]

Answer 14

Yes now multiply the 2 and 10 and then the radicands.

Answer 15

20√5u, hey that's one of the answers

Answer 16

Cool Good job.

Answer 17

Thanks so much you actually helped me through it

Answer 18

yw