Factor Theorem:
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The Factor Theorem states that for a polynomial f(x), if f(a) = 0, then (x - a) is a factor of the polynomial. Conversely, if (x - a) is a factor, then f(a) = 0.
The calculator evaluates the polynomial at the given value:
Where:
Explanation: The calculator substitutes x = a into the polynomial and computes the result.
Details: The Factor Theorem is fundamental in algebra for factoring polynomials, finding roots, and solving polynomial equations.
Tips: Enter the polynomial using standard notation (e.g., x^3 - 2x^2 + x - 2) and the value a to evaluate. Use proper mathematical syntax.
Q1: What if f(a) = 0?
A: If f(a) = 0, then (x - a) is a factor of the polynomial f(x).
Q2: What notation should I use for exponents?
A: Use the caret symbol (^), for example: x^2 for x squared.
Q3: Can I use decimal values for a?
A: Yes, the calculator supports both integer and decimal values for a.
Q4: What if I get an error?
A: Check your polynomial syntax and ensure you're using valid mathematical operations.
Q5: Does this work for all types of polynomials?
A: Yes, the Factor Theorem applies to all polynomials, though complex roots may require additional methods.