Question

factorise the following algebraic ​

Answer 1

Answer:

=x²/36-y²/25

we use a²-b² identity

=a²-b²=(a+b)(a-b)

so

=(x/6)²-(y/5)²

where

=a=x/6

and

=b=x/5

then

=(x/6+y/5)(x/6-y/5)