Question

(a+b)^2=a^2 +6a +9,find the positive value for b.

Answer 1

Answer:

b = 3

Step-by-step explanation:

We have,

(a + b)² = a² + 6a + 9

We know that,

(a + b)² = a² + 2ab + b²

On Comparing,

a² + 6a + 9 = a² + 2ab + b²

we get that,

b² = 9

b = ±√9

b = ±3

Also,

6a = 2ab

b = 6a/2a

b = 3

Now, we want the Positive value of b.

Hence,

b = 3

Hope it helped and believing you understood it........All the best