If f(1) = 0, what are all the roots of the function mc021-1.jpg? use the remainder theorem.
Asked by maham237 @ in Mathematics viewed by 313 People
A. x = –1, x = 1, or x = 3
B. x = –3, x = –1, or x = 1
C. x = –3 or x = 1
D. x = –1 or x = 3
Asked by maham237 @ in Mathematics viewed by 313 People
A. x = –1, x = 1, or x = 3
B. x = –3, x = –1, or x = 1
C. x = –3 or x = 1
D. x = –1 or x = 3
Answered by maham237 @
Solution:
As we are given that f(1) = 0 .
It mean that is one of the factor of the given equation.
Remainder theorem can be applied as below:
Hence the factors are (x-1),(x+3) and (x+1).
Hence the correct option is B.
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