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Find the non-zero values of "a" for the expression x^3 - 5x^2 - 2x + 24, which has the same remainder when divided by x - a and by x + 12a.

User Jorgeh
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1 Answer

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Final answer:

To find the non-zero values of "a" for the polynomial's same remainder condition, we employ the Remainder Theorem, setting up an equation using the values f(a) and f(-12a) and solving for "a".

Step-by-step explanation:

We are tasked with finding the non-zero values of "a" for which the polynomial x^3 - 5x^2 - 2x + 24 gives the same remainder when divided by x - a and x + 12a. To do this, we will use the Remainder Theorem, which states that if a polynomial f(x) is divided by x - r, the remainder is f(r).

Firstly, for x - a, let's evaluate the polynomial at a:

f(a) = a^3 - 5a^2 - 2a + 24

For x + 12a, let's evaluate the polynomial at -12a:

f(-12a) = (-12a)^3 - 5(-12a)^2 - 2(-12a) + 24

Now, in order for these two remainders to be equal, we must have:

f(a) = f(-12a)

Which leads to an equation we must solve for a. The solution to this equation will provide the non-zero values of a that meet the condition.

User Alec Hewitt
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