Question

find the value of 2x²–5x+6 at 1 and x=(—3)​
please tell me answer fast please

Answer 1

Step-by-step explanation:

x^2−5x+6=0=(x−2)(x−3)

Roots are 2 and 3

For x^2−8x+15=0=(x−5)(x−3)

Roots are 3 and 5

We have common root =3

We know that common root is the root of x^2+4x+q=0

Putting x=3 we get 9+12+q=0

⇒q=−21

hope this will help you