Question

using remainder theorem find the remainder when f(x)=x^3
+3x^2-5x+4 is divided by x+2​

Answer 1

✪ Reminder theorem ✪

Let $p(x)$ be a polynomial of degree 1 or more and let $\alpha$ be any real number . If $p(x)$ is devided by $(x - \alpha )$ then reminder is $p(\alpha )$.

✪ SOLUTION ✪

Let , x - 2 = 0.

Then, x = 2

Now,

P ( x ) = x³ + 3x² - 5x + 4

P ( 2 ) = 2³ + 3 × 2² - 5 × 2 + 4

P ( 2 ) = 8 + 12 - 10 + 4

P ( 2 ) = 24 - 10

P ( 2 ) = 14

Hence,

The reminder is 14.

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Answer 2

Answer:

the answer is14.

Step-by-step explanation:

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