Which two expressions equal to 18 x 3? А. 9х3х2 В. 6х3х3 С. 6х3х6 D. 9х3х9
2 answers:
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The greatest common factor is 2
This is because we start by taking the largest factor that goes into both coefficients. Since the first coefficient is 2, we have to try 2 and 1. Since 2 is larger and goes into 36 evenly, we use that.
Then we use the smallest number of each variable. There are 4 r's in both equations. So, that is the number that we take. There are 2 s's in the first term, so we take that number.