Question

1. If x = 4, y = -1 find (i) x + y (ii) x – y

2. Add the following:

i) 4x2y, 3x2y, -x

2y

ii) 6, 7a, 9a, 10y​

Answer 1

Answer:

1i 3

1ii 5

2i 8y + 6y - x + 2y = 16y - x

2ii 6 + 16a + 10y

Answer 2

Answer:

x = 4 , y = -1

(1)

x + y

4 + ( - 1 )

4-1

3

hence, the answer is 3.

(2)

x - y

4 - (-1)

4 +1

5

hence , the answer is 5.