Question

Oy
9. Find the value of b so that x4 + x3 + 8x? - b is exactly divisible by (x-1).
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Answer 1

Answer:

....................

Answer 2

Answer:

10

Step-by-step explanation:

p(x) = x^4+x^3+8x-b

g(x) = x-1

x-1 = 0

x = 1

p(1) = (1)^4+(1)^3+8(1)-b

p(1) = 1+1+8-b

p(1) = 10-b

if p(x) is divisible by g(x), then

0 = 10-b

-10 = -b

10=b