Question

Simplifying Surds: Can someone help me out with the 4th line denominator.. i have attached a picture

Answer 1

so what's the problem?

Answer 2

i think i got it. the line where i have put a blue arrow

Answer 3

you were asking why it was 4 x 2?

Answer 4

does it work out to be 1?

Answer 5

yup

Answer 6

it becomes 9 - 8 = 1

Answer 7

omggg its a 4 times 2... i was like why is there a 'x' and where did x come from.. it looks like the letter x!!

Answer 8

hahah thanks!

Answer 9

haha welcome ^_^

Answer 10

yeah good work