Question

W
1. Find the value of the polynomial 5x3 - 3x2 - 7x + 11 at
(1) x=0 (11) x=1
x=1 (iii) x = -1
(iv) x2
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Answer 1

Answer:

p(x) = 5x^3-3x^2-7x+11

i) p(0) = 5(0)^3-3(0)^2-7(0)+11

         = 0-0-0+11

         = +11

ii) p(1) = 5(1)^3-3(1)^2-7(1)+11

         = 5-3-7+11

         = 16-10

         = 6

iii) p(-1) = 5(-1)^3-3(-1)^2-7(-1)+11

           =  -5-3+7+11

            = -8+18

            = +10

iv) p(2) = 5(2)^3-3(2)^2-7(2)+11

           = 5(8)-3(4)-14+11

           = 40-10-14+11

           = 50-24

           =  26

Step-by-step explanation:

Answer 2

Hope this answer helps you.....