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user100 [1]
3 years ago
11

HELP! PLZ I NEED THIS ASAP

Mathematics
1 answer:
harina [27]3 years ago
6 0

Answer:

2x^{4}+x^{3}-x+2

Step-by-step explanation:

To find which one is prime, let's try to factor them all. We can use the factoring by grouping method.

x^{3}+3x^{2}-2x-6

x^{3}+3x^{2}and-2x-6

x^{2}(x+3)and-2(x+3)

So this one is not prime, since you can still factor it.

x^{3}+2x^{2}-3x-6

x^{3}+2x^{2}and-3x-6

x^{2}(x-2)and3(x-2)

So this one is not prime, since you can still factor it.

4x^{4}+4x^{2}-2x-2

4x^{4}+4x^{2}and-2x-2

4x^{3}(x+1)and-2(x+1)

So this one is not prime, since you can still factor it.

2x^{4}+x^{3}-x+2

2x^{4}+x^{3}and-x+2

x^{3}(2x+1)and -x+2 cannot be further factored.

Therefore, 2x^{4}+x^{3}-x+2 is a prime.

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