Which unit tiles are needed to complete the factonation
The partial factorization of x-x-12 is modeled with
algebra tiles
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3 negative unit tiles
3 positive unit tiles
4 negative unit tiles
4 positive unit tiles

4 negative unit tiles

Step-by-step explanation: There are 3 positivs one top so we need to find the factors on the horizontal side so a negative times a postive is a negative

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

answer: i dont know i want points

step-by-step explanation: