A polynomial function f(x) has a leading coefficient of 7 and a constant term of 5. Which of the following is possible root of f(x)?
Options
A
B
C
D
Answer & Analysis
Answer
A
Analysis
1. Recall the Rational Root Theorem:
For a polynomial function with integer coefficients (), the possible rational roots are of the form , where is a factor of the constant term and is a factor of the leading coefficient .
2. Identify and for the given polynomial:
Given that the leading coefficient , and its factors are .
The constant term , and its factors are .
3. Determine the possible rational roots :
When , the possible rational roots are
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