24lfoster
16.10.2019 •
Mathematics
Find the sum. 12x2 + 9x2 = 21x2 21x4 22x2 22x4
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Ответ:
12*2=24
Next,we need to find out what 9*2 is.
9*2=18
24=18=42.
Finally, we need to find out which of the following equals 42.
21*2=42, 21*4=84, 22*2=44, and 22*4=88
21*2=42,so that is your answer.
Hope this helped
Ответ: