Question

find the value of the expression


please fast ​

Answer 1

Answer:

x³-y³+x²+y²+3

x= 2 & y= 1

2³- 1³ + 2² + 1² + 3

8 - 1 + 4 + 1 + 3

7 + 5 + 3

15

value of the expression is 15

Answer 2

Answer:

15

Step-by-step explanation:

If x = 2 and y = 1

so

x³ - y³ + x² + y² + 3 [put the value of x and y]

= (2)³ - (1)³ + (2)² + (1)² + 3

= (2×2×2) - (1×1×1) + (2×2) + (1×1) + 3

= 8 - 1 + 4 + 1 + 3

= 7+4+1+3

= 15

Hence the value of polynomial will be 15.

hope it helps.