Question

HDP EXERCISE 2.2
1. Find the value of the polynomial 5x – 4x² + 3 at
(1) x=0 (b)x=-1
) x=2
2. Find p(q), p(1) and p(2) for each of the following polynomials:
(1) pſy) = y2 – y + 1 (ii) pt)=2+t+ 22 – t3
(ia) p(x) = x
(iv p(x) = (x-1) (x + 1)​

Answer 1

1)= 5X - 4x² + 3

= 5(0) - 4(0)² + 3

= 0 - 0 + 3

= 3

1)b) = 5X - 4x² + 3

= 5(-1) - 4(-1)² + 3

= -5 - 4 + 3

= - 9 + 3

= -6

1)c) = 5X - 4x² + 3

= 5(2) - 4(2)² + 3

= 10 - 16 + 3

= -6 + 3

= -3