Question

What is the sum or difference?

1. 3x8 – 7x8
(1 point)–4x16
–21x8
–4x8
10x8

2. 6y5 – 9y5
(1 point)–3y10
15y5
–54y5
–3y5

Write the polynomial in standard form. Then name the polynomial based on its degree and number of terms.


3. 2 – 11x2 – 8x + 6x2
(1 point)–5x2 – 8x + 2; quadratic trinomial
–5x2 – 8x; quadratic binomial
–6x2 – 8x – 2; cubic polynomial
6x2 – 8x + 2; cubic trinomial

4. A biologist studied the populations of white-sided jackrabbits and black-tailed jackrabbits over a 5-year period. The biologist modeled the populations, in thousands, with the

Answer 1

Answer: 1) The answer is -4x^8, you just have to subtract 7 from 3 to get -4

Explanation:

Answer 2

1) The answer is -4x^8, you just have to subtract 7 from 3 to get -4.

2) The answer is -3y^5, again just subtract 9 from 6.

3) The correct answer is -5x^2 - 8x + 2, it is a quadratic trinomial.