Question

36. Find the value of the following expressions for a = 3,6 = 2
1. a+b
2.7a - 5b
3. a² + 2ab +b​

Answer 1

Answer:

1.5

2.11

3.23

Step-by-step explanation:

1. 3+2 =5

2. 7×3 - 5×2 = 21-10 = 11

3. 3^2 + 2×3×2 + 2 = 9+12+2 = 23

Answer 2

Answer:

If a = 3 and b = 6

1) a + b

= 3+6

= 9

2) 7a - 5b

= 7×3 - 5×6

= 28 - 30

= -2

3) a² + 2ab + b

= 3² + 2 × 3 × 6 + 6

= 9 + 36 + 6

= 55