Which description is correct for the polynomial 3x^4+x+7?
quartic binomial
quadratic trinomial
cubic trinomial
quartic trinomial

D. Quartic trinomial

Step-by-step explanation:

Given polynomial:

We can make following conclusions for the given polynomial.

1) The polynomial has three terms including a constant term. Thus it is a trinomial as trinomials are polynomials with 3 unlike terms.

2) The leading term is as it is the highest degree term..

3) The degree of polynomial is 4 as leading variable in the leading term is raised to power of 4. Thus, it is a quartic polynomial as it is of degree 4.

Thus, this polynomial can be called a quartic trinomial.

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.