Question

if x=3 and y=1,then find the value of x2-y2​

Answer 1

Answer:

4

Step-by-step explanation:

x2 - y2

= (3 × 2) - (1 × 2)

= 6 - 2

= 4.

Answer 2

Answer:

8

Step-by-step explanation:

x²-y²

3²-1²

9-1

8

or

x²-y²=(x+y)(x-y)

=(3+1)(3-1)

=(4)(2)

=8