1. How do you classify 2x3 - 9x?

2x³=9x is a polynomial. Let's classify it:

First of all, it is a binomial, because it has 2 terms.

Now, is it a 1st degree polynomial, a 2nd degree polynomial, or a 3rd degree polynomial?

Don't worry, I will tell you.

A 1st degree polynomial has 1 term with an exponent of 1.

A 2nd degree polynomial has 1 term with an exponent of 2, and so forth.

Therefore, we have a 3rd degree binomial.

no

step-by-step explanation:

2-7=-5

7-2=5

when you combing like terms for ech expression, 5 and -5. these numbers are not equal to each other.

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x