Question

the value of (p)x= 5x-4x^2+3 if x+= -1

Answer 1

(a) Let p (x) = 5x – 4x2 + 3 …(i)

On putting x = - 1 in Equipment . (i), we get

p ( - 1 ) = 5 ( - 1 ) - 4 ( - 1 ) 2 + 3

p ( - 1 ) = - 5 - 4 + 3

p ( - 1 ) = - 6