Question

Which polynomial is prime?

x3 + 3x2 + 2x + 6
x3 + 3x2 – 2x – 6
10x2 – 4x + 3x + 6
10x2 – 10x + 6x – 6

Answer 1

http://www.ehow.com/how_2265204_identify-prime-polynomials-algebra.html
Prime basically means we cannot factor it, so what do you think is the answer?

Answer 2

10x2 – 4x + 3x + 6 ???

Answer 3

Yep you are right that equation cannot be factored so it is prime

Answer 4

thank you !! (:

Answer 5

You can always use this handy tool to check if it gets factored ( better to do it by hand, but still) http://www.mathportal.org/calculators/polynomials-solvers/polynomial-factoring-calculator.php