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16.10.2020 •
Mathematics
The ratio black to blue bags is 5 to3 if there is 10 black bags how many blue bags?
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Ответ:
(xy + x)(xy + x) - perfect square
(2x-3)(-3+2x) - not a perfect square
(16- x²)(x2 – 16) - not a perfect square
(4y? +25)(25+4y?) - not a perfect square