Combine the like terms to simplify the expression. 9x2 + 3y2 + 6y2 – x

9x²+9y²-x

Combining like terms

-9x is a different term than 9x^2 however 9x is like terms with x. Coefficients really are the only thing that are excused for like terms

Now with that out of the way,

1 - Rewrite

9x²+3y²+6y²-x

This step becomes more useful as you go on in algebra as organization will soon start to correlate how fast you complete problems correctly

2 - Find like terms

9x² does not have any like terms

+3y² is like terms with +6y²

-x does not have a like term

3 - Combine like terms

9x²+(3y²+6y²)-x

          ↓

9x²+9y²-x

Hope this helps :)

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.

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step-by-step explanation: