Question

If (x-2) is factor of x^2+ax-6=0 and x^2-9x+b=0 then a+b is equal to

Answer 1

Answer:

Since, (x -2) is one factor of x

2

+ax−6=0

⇒2

2

+a(2)−6=0

⇒2a=2⇒a=1 ...(i)

Again as (x -2) is factor of x

2

−9x+b=0

⇒2

2

−9(2)+b=0

⇒b=14 ...(ii)

Now, a+b=1+14=15

Hence, Option A is correct.

Answer 2

Attached, please mark brainliest. :)