Question

\[\frac{(a^4-b^2)}{a-b}\] is equal to ?

Answer 1

\[\frac{(a^2-b)(a^2+b)}{a-b}\]

Answer 2

its equal to something, but it is more elegant this way.

Answer 3

hmmm

Answer 4

\[\frac{(a^2)^2-(b)^2)}{(a-b)}\]
\[\frac{(a^2+b)(a^2-b)}{a-b}\]
after then ?

Answer 5

thats it .........
it is cannot simplified

Answer 6

options :
1)a^2+b^2
2) (a+b)(a^2-b^2)
3) (a+b)(a^2+b^2)
4) none of these

Answer 7

options are now given help me now please

Answer 8

i think the ans is 4

Answer 9

iam sure!!!!

Answer 10

how ?