Use the remainder theorem to find the remainder when p(x) = x4 - 9x3 - 5x2 - 3x + 4 is divided by x + 3.
Solution:
Given polynomial p(x) = x4 - 9x3 - 5x2 - 3x + 4
It is divided by x + 3
For the division, we use remainder theorem
When p(x) is divided by (x-a) then p(a) is the remainder.
p(-3) gives the remainder.
(x4 - 9x3 - 5x2 - 3x + 4) ÷ (x - 3)
p(x) = x4 - 9x3 - 5x2 - 3x + 4
p(-3) = (-3)4 - 9(-3)3 - 5(-3)2 - 3(-3) + 4
p(-3) = 81 - 9(-27) - 5(9) - 3(-3) + 4
p(-3) = 81 - 9(-27) - 5(9) - 3(-3) + 4
= 81 - 243 - 45 + 13
= 292
The remainder is 292.
Use the remainder theorem to find the remainder when p(x) = x4 - 9x3 - 5x2 - 3x + 4 is divided by x + 3.
Summary:
Using the remainder theorem, the remainder when p(x) = x4 - 9x3 - 5x2 - 3x + 4 is divided by x + 3 is 292.
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