Question

5x²-Px + 8 is 4 find the value of P​

Answer 1

Answer:

Let the function be represented by f(x).

As x−2, exactly divides f(x), 2 is the zero of f(x) 

Hence, f(2)=0.

f(x)=x3+4x2−px+8

⇒f(2)=23+4×22−p×2+8=0

⇒2p=32

⇒p=16