Question

Divide the following radical and simplify the answer.

http://imgur.com/gotgkMv

Answer 1

@xapproachesinfinity

Answer 2

multiply top and bottom by the conjugate of the denominator

Answer 3

Is that English 0.o

Answer 4

yes the conjugate is as follows

(a + sqrtb) is conjugate of (a - sqrtb) and vice versa
- when yuy multiply them out the sqrt disappears.

Answer 5

My brain hurts from this one.

Answer 6

yes - its pretty long winded

Answer 7

multiplying thr denominator is bad enough but the numerator is worse!

for denominator
we get
(14sqrt50 - 8)(14sqrt50 + 8)
= 4(7sqrt50 - 4)(7sqrt50 + 4)
= 4 (49*50 - 16)
= 4 * 3434
= 9736

Answer 8

4(7sqrt50 - 4)(-3 -2 sqrt48)

= 4 ( -21sqrt50 -14sqrt2400 + 12 + 8 sqrt48)

Answer 9

So it's B?

Answer 10

i dont know - we need to simplify a bit more before we can say that

Answer 11

sqrt 2440 = sqrt16 * sqrt150
= 4 sqrt150

Answer 12

- that doesn't help

oh 2400 = 6 * 400 = 20 sqrt6

that looks more promising

Answer 13

So is it B lol I am on a time scale and wanna improve my score