Question

Solve: (3sqrt2-9sqrt3)(5sqrt2+15sqrt3)
Please help

Answer 1

\[(3\sqrt{2}-9\sqrt{3})(5\sqrt{2}+15\sqrt{3})\]

Answer 2

yes that is the problem...do you know how to do it?

Answer 3

Multiply using rules that you need to know
(15)(2)-45sqrt6+45sqr6-(135)(3)

simplify: 30-405=-375

Answer 4

Do you know the rules for multiplying radicals?

Answer 5

Somewhat

Answer 6

This class is killing me so bad....confusing

Answer 7

Take your time and practice

Answer 8

Thank you so much

Answer 9

\[\sqrt{x}\sqrt{y}=\sqrt{xy}\]

Answer 10

That makes sense. but why did you pull the 2 out of the matching radicals

Answer 11

\[\sqrt{x}\sqrt{x}=x\]

Answer 12

Awwww...that's where i was making my mistake then...thank you so much for the help!

Answer 13

\[\sqrt{2}\sqrt{2}=2\]