Предмет: Алгебра, автор: BakaevCRIRO7

Упростите выражение:
– 0,3 а( 4а 2 – 3 )( 2а 2 + 5 ).

4). Представьте многочлен в виде произведения:
а). х2 – ху – 4х + 4у
б). ах – ау + су – сх + х – у

Ответы

Автор ответа: Никита999111
0
1) -1,2а^3+0,9а-0,6а^3-1,5а=-1,8а^3-0,6а
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The Pennine Way is a 469-kilometre walking path which runs from the Peak District in Derbyshire to just inside the Scottish border. Other trails go further, but it is known as the most challenging. This is because of the nature of the landscape, which is hilly, rocky and often very muddy. Some people see this trail as an opportunity to take a pleasant day's hike on a small section of the route, but eighteen-year-old David Lemming saw it as a challenge. ‘I’d come across a great account of hiking the whole trail, written a few years ago, and I was determined to do it myself. A friend was going with me, but he changed his mind. So I promised my parents I'd check in daily on my mobile, and I’d also post pictures on my social media page. I didn't feel anxious - I was just excited to get going.’

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1, The Pennine Way is
2, Where did David get the idea of hiking the trail?
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4, How did David get help after his accident?
5, What does the pronoun ‘it’ in paragraph 3 refer to?
6, What is the best title for the article?
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