Given that f(x) = x3 + 2x2 + 3x, find the remainder when f(x + 2) isdivided by x − 2.
Question
Given that , find the remainder when is divided by .
Solution
To find the remainder when f(x + 2) is divided by x - 2, we first need to substitute (x + 2) into the function f(x).
So, f(x + 2) = (x + 2)³ + 2(x + 2)² + 3(x + 2)
Simplify this to get: f(x + 2) = x³ + 6x² + 12x + 8 + 2x² + 8x + 8 + 3x + 6
Combine like terms to get: f(x + 2) = x³ + 8x² + 23x + 22
Now, we want to find the remainder when f(x + 2) is divided by x - 2.
We can use the Remainder Theorem, which states that the remainder when a polynomial f(x) is divided by (x - a) is equal to f(a).
So, we substitute x = 2 into f(x + 2) to find the remainder:
Remainder = f(2) = 2³ + 82² + 232 + 22 = 8 + 32 + 46 + 22 = 108
So, the remainder when f(x + 2) is divided by x - 2 is 108.
Similar Questions
Given that f(x) = x3 + 2x2 + 3x, find the remainder when f(x + 2) isdivided by x − 2.
When f(x) = 15x3 – 14x2 – 4x + 10 is divided by (3x + 2), then the remainder is:
When 𝑥3 − 2𝑥2 + 𝑚𝑥 + 4 is divided by 𝑥 − 3, the remainder is −2, find ma. −2b. −5c. −3d. −4
Given that the remainder when f(x) = x3 − 2x2 − ax + b is divided by x − 1is 96 and that x − 4 is a factor, determine the values of a and b.
Find the remainder when x2 – 6x + 5 is divided by (x + 2).radio_button_unchecked3radio_button_unchecked4radio_button_unchecked21radio_button_unchecked0
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.