Question

The value of (1/3 x²+ y²) (1/3 x² - y²) when x = 3 and y = - 1 is :-​

Answer 1

Answer:

We simply substitute x=1,y=2 in the given expression x

2

+y

2

as shown below:

x

2

+y

2

=(1)

2

+(2)

2

=1+4=5

Hence, the value of the expression x

2

+y

2

=5 when x=1,y=2.