September 2018 2 18 Report

jak za pomocą wzorów skróconego mnożenia wykonać działanie:
754² - (75,4)²=


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Czy ktoś mógłby sprawdzić czy tekst poniżej jest napisany poprawnie i w razie czego go poprawić?Every human is a part of environment. We're living on this world and slowly destroying everything around us. People throw away milion tonnes of rubbish, produce a lot of pollutions and waste water. Anyway, there are things we can do in our everyday life to protect environment. They seem to be small, but performed by a large number of people, they would mean a lot. Firstly, we should limit a number of produced rubbish and try not to dropping them everywhere. We can throw the litter to the wastebaskets, not on the grass, to the rivers or in the forests. When we sorting it, them end up recycled, not in the middle of the ocean. We can using linen bags, not plastic bags, too. All the plastic disposable things, like bottles or bags, will be with us for a very long time. Next, people produce too much pollutions. Every car and every factory produce a lot of dioxide, which is harmful to the atmosphere. So we can limit traveling by car. If the distance is not very long, we can riding a bike or walking. It will be better for our health and for the environment. Finally, we must turning off the tap when we brushing our teeth. When we don't do this, we waste water which is really important for our life. On Earth isn't a lot of water we can use to drink or clean up, so we should economize it. In my opinion, knowledge about ecology is really important, because only people can stop destroing environment. We should think about the future and save the world.
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