In this case, The Remainder Theorem tells us the remainder when p(x) is divided by (x - c), namely p(c), is 0, which means (x - c) is a factor of p What we
1 Factorise polynomial expressions 2 3 2 Divide a polynomial by a linear or quadratic factor 2 3 3 Apply the remainder theorem 2 3 4 Apply the factor theorem
In this section, we will learn to use the remainder and factor theorems to factorise and to solve polynomials that are of degree higher than 2 Before doing so,
There are two important theorems to be applied when factoring polynomials: Remainder Theorem: When a polynomial, f(x), is divided by x - a, the remainder is
(Hint: Refer to Example 6 ) Page 3 Page 3 (Section 5 1) Remainder Theorem Factor Theorem
Section 3 4 Factor Theorem and Remainder Theorem In the last section, we limited ourselves to finding the intercepts, or zeros, of polynomials
Corollary (The Factor Theorem) A polynomial f(x) has (x b a) as a factor if and only if f(a) = 0 The Remainder Theorem follows immediately from the
Target: On completion of this worksheet you should be able to use the remainder and factor theorems to find factors of polynomials
Remainder Theorem:When a polynomial, f(x), is divided by x-a, the remainder is equal to f(a). If the
remainder is zero, then x-ais a factor of the polynomial. Factor Theorem:x-ais a factor of f(x) if and only if f(a) = 0 Ex: What is the remainder when 8x4-3x2+ 5x-9 is divided by x+ 1? Ex. Determine the remainder when 2x2+ 5x-4 is divided by 2x1, without dividing. Ex. If (x2) is a factor of f(x)= x3-7x + k, determine the value of k. Ex: When 2x4+ ax3-5x2+ bx-11 is divided by x-1 the remainder is -13. When it is divided by x+ 2 the remainder is -7. Find aand b.If none of the factors of the constant term give a remainder of 0, then the factor must be of the form
(ax b). Substitute values of the form b/awhere bare factors of the constant term and aare factors of
the leading coefficient. Ex. Determine a factor of P(x) = 30x3+ 17x2-3x-2.