Question

combine the expressions

Answer 1

\[-\sqrt{147}+\sqrt{192}-\sqrt{243} \space and \space got \space 8\sqrt{3}\]

Answer 2

\[\implies -7\sqrt 3 + 8\sqrt 3 - 3\sqrt 3\]
is this what you got?

Answer 3

\[-\sqrt{147} = -\sqrt{49 \times 3} \implies - 7\sqrt 3\]
\[\sqrt{192} \implies \sqrt{64 \times 3} \implies 8\sqrt 3\]
\[\sqrt{243} \implies \sqrt{81 \times 3} \implies 9\sqrt 3\]
haha my mistake

Answer 4

should have been \[-7\sqrt 3 + 8\sqrt 3 - 9\sqrt 3\]

Answer 5

-3\[\sqrt{8}\]...

Answer 6

oops

Answer 7

i'm confused..

Answer 8

which part?

Answer 9

If @lgbasallote is correct, you can factor out the \(\sqrt{3}\) to get:

\(\sqrt{3}(-7-9+8)\)

Answer 10

8\[\sqrt{3}\]

Answer 11

wanna recheck that?

Answer 12

\(-8\sqrt{3}\)

Answer 13

ahh ok wait

Answer 14

k got it