Question

please let me know if you have any answer​

Answer 1

Step-by-step explanation:

here is your answer brother

Answer 2

Step-by-step explanation:

1. 2x+7y

2(2)+7(-1)

4+(-7)

4-7

-3

2. x²+y²

2²+(-1)²

4+(1)

4+1

5

3. x²+7xy+y²

2²+7(2*-1)+(-1)²

4+(-14)+1

4-14+1

-9

4. x³-8y³

2³-8(-1)³

8-8(-1)

8-(-8)

8+8

16

5. x/9 + y/4

2/9 + -1/4

8+(-9)

36

8-9

36

-1/36