Question

1. If x=2 and y=1 find the value of x² + y² - 2x²y²​

Answer 1

Answer:

- 3

Step-by-step explanation:

x^2 = 4, y^2 = 1 , 2×x^2×y^2

Therefore,

5-8 = -3

Answer 2

Answer:

-3

Step-by-step explanation:

x²+y²-2x²y²

= 2²+1²-2.2².1²

=4+1-8

=-3