Question

Plz find out:)

Answer 1

Given: -\[\color{red}{x+y=3.}\] & \[\color{red}{xy=2.}\]
Then find: -\[\color{blue}{x^3-y^3=?}\]

Answer 2

Solve for \(x\) and \(y\).

Answer 3

But isn't there a short method as
we can write
\[\color{green}{x^3-y^3=(x-y)[(x+y)^2-3xy]}\]But I m not getting value of "x-y".
How to get it?

Answer 4

(x-y)^2=(x+y)^2_4xy

Answer 5

k! thanx @sritama

Answer 6

Why not just use \(y=3-x\) in the \((x-y)\) part?

Answer 7

Nevermind, actually.

Answer 8

k! thanx a lot to both I gt it:)

Answer 9

welcome :)

Answer 10

You're welcome.

Answer 11

^_^