Question

Example 2: Find the value of each of the following polynomials at the indicated
of variables:
(i) p(x) = 5x2 – 3x + 7 at x=1.
(ii) g(y) = 3y" – 4y + Vī at y = 2.
(iii) p(t) = 414 + 51 - + 6 at 1 = a.​

Answer 1

Answer:

1. A/Q,

P(x) = 5x2 – 3x + 7

P ( 1 ) = 5×2 – 3 × 1 + 7

= 10 - 3 + 7

= 17- 3

= 14

Answer will be 14.

2. g(y) = 3y" – 4y + Vī

g(2)= 3×2 - 4×2 + 6

= 6 - 8 + 6

= 12-8

= 4

Answer will be 4

3. p(t) = 414 + 51 - + 6

P(a)= 414 + 51 -6

= 459