Is it a b c or d tell me how you got it and double check before you submit.

Which of the following is true for the relation f(x)=2x^2+1

Common binomial factor of 6x(3x+7)+5(3x+7)

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.