Question

Which polynomial is a quintic trinomial?

Answer 1

Answer:

Option d is correct.

$3x^5+7x^2-9x^4$

Step-by-step explanation:

Degree: Highest degree in the polynomial

Trinomial: A polynomial or equation that has 3 number of terms.

Quintic means a polynomial with degree 5.

a.

$x^3+2x^2-8x+16$

This is a polynomial of degree 3 with 4 number of terms.

b.

$x^2+4$

⇒2nd degree polynomial with 2 terms

c.

$-x^4-5x^2+1$

⇒4th degree polynomial with 3 terms.

d.

$3x^5+7x^2-9x^4$

⇒5th degree polynomial with number of 3 terms.

Therefore, a polynomial which is a quintic trinomial is, $3x^5+7x^2-9x^4$

Answer 2

QUINTIC MEANS THAT THE HIGHEST DEGREE IS 5 and a trinomial has 3 terms 

So it is d