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18.08.2021 •
Mathematics
Say whether each of these statements about square numbers is always true, sometimes true or never true
a the last digit is 5
b the last digit is 7
c last digit is a square number.
last digit is not 3 or 8
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Ответ:
-16a+24b-30b+20a
(-16a+20a)+(24b-30b)
THE ANSWER IS 4A-6B