Use remainder theorem to find the remainder when the function f(x) = x^3 + 5x^2 - 7x is divided by (x+4)
2 answers:
Answer:
Remainder is 44.
Step-by-step explanation:
Remainder theorem says that if f(x) is divided by the linear polynomial (x-a) , then remainder is f(a)
In given question , f(x) = x³ + 5x² -7x
linear polynomial is (x+4) = (x - (-4) )
so from remainder theorem , remainder = f(-4) = (-4)³ + 5 ( -4)² - 7(-4)
= -64 + 80+28=44
Hence Remainder is 44.
Answer:
44 is the correct one
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