Which polynomial is prime?
a)x3 + 3x2 – 2x – 6
b)x3 – 2x2 + 3x – 6
c)4x4 + 4x3 –2x – 2
d)4x4 + 2x3 –2x + 4

is a prime polynomial.

Step-by-step explanation:

Given some polynomials we have to choose the polynomial which is prime.

A prime polynomial is a polynomial with integer coefficients that cannot be factored lower degree polynomials or simply we can say prime polynomial is a polynomial that can't be factored.

Option A:

∴ can be factored as

Option B:

∴ can be factored as

Option C:

∴ can be factored as

Option D:

The above polynomial can't be factored.

Hence,   is a prime polynomial.

Option D is correct.

17.08

correct me if i am wrong.

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870