Question

can someone please help me? i need to simplify this radical... square root of 15a^8 b

Answer 1

take out all the perfect squares

Answer 2

a^4 sqrt(15b)

Answer 3

dont you first have to find out what perfect square number times a regular number wud give you 15?

Answer 4

like there is no perfect square that can be multiplied to equal 15.

Answer 5

\[\sqrt{15a ^8b}\]

Answer 6

yes; 15 has no perfect square factors :)

Answer 7

Okay. so what can i do?

Answer 8

8/2 = 4 so pull out a^4

Answer 9

sqrt(a^8) means a^8/2 :)

Answer 10

so ull end up with \[\sqrt{15a ^{4}}b\]

Answer 11

pull out the a's

sqrt(a^8) = a^8/2 = a^4

a^4^2 = aa^8

Answer 12

\[a^4\sqrt{15b}\]

Answer 13

i got you.

Answer 14

so that wud be you answer.

Answer 15

your***?

Answer 16

it would; yes

Answer 17

thank you. so much.

Answer 18

yw

Answer 19

wait. one question. just wanted to be sure... \[\sqrt[2]{1000}\] is 100 right?