Đáp án:
CHÚC BẠN HỌC TỐT!!!!
Giải thích các bước giải:
5⁵ - 5⁴ + 5³
= 5³.5² - 5³.5 + 5³.1
= 5³.(5² - 5 + 1)
= 5³.(25 - 5 + 1)
= 5³.21
Vì 21 chia hết cho 7
=> 5³.21 chia hết cho 7
=> 5⁵ - 5⁴ + 5³ chia hết cho 7.
$5^{5}-5^{4}+5³$
= $5².( 5²-5+1)$
= $5².21$
= $5².3.7$
⇒ ĐPCM
Giải hộ mk câu a, e bài 3 với. Cảm ơn.
tìm x 2 mũ x +2 mũ x+3+2 mũ x+5+2 mũ x+7+.........+2 mũ x+2015=2 mũ 2019-8 giải thik chi tiết từng bước gảii xong mik vote 5 sao cảm ơn
giúp nha cách chia động từ câu sau they (play)....socce every day
a) tìm hai số nguyên khác nhau mà tích của chúng bằng hiệu của chúng b)tìm số nguyên x biết rằng : x - y + -5 ; y- z =-6 ;z+x +11 k được làm tắt nha đúng em vote cho 5 sao thank mọi người !
I. Circle the correct answer (A,B,C or D) to complete each sentence. 1. You should ……….. information about a custom or tradition. A. finds B. found C. finding D. find 2. A tradition is something we do that is special and ……… down through the generations. A. to passed B. passed C. passing D. is passing 3. In the UK, there are lots of customs for table manners. For example, we use a knife and fork at dinner. A. have to B. are having C. has to D. having to 4. In Viet Nam, you…….. use only the first name to address people older than you. A. should B. must C. shouldn’t D. have to 5. At the Mid-Autumn Festival, kids can sing, dance, and enjoy moon-cakes;……, every child likes it very much. A. However B. Moreover C. Because D. Therefore 6. In 2010, Ha Noi…………. its 1000th anniversary. A. celebrated B. commemorated C. worshipped D. remembered 7. Tet is an occasion for family…………… in Viet Nam. A. visitings B. Meeting C. reunions D. seeings 8. ………. spring comes, many Vietnamese villages prepare for a new festival season. A. While B. When C. Nevertheless D. However 9. People burn incense to show respect to their……………. during Tet. A. relatives B. ancestors C. friends D. neighbors 10. At this time party, Anna …………… a party at Royal Palace. A. was attending B. were attending C. attend D. am attending
Viết đoạn văn ( 8-10 câu ) cảm nhận về bức tranh mùa hè trong bài thơ '' Khi con tu hú '' của Tố Hữu giúp vs ạ đc bài tui cho luôn 5sao
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Giúp mik ik nha , mik cảm ơn mới ng nhiều
Làm cho em bài 3 và 4 với làm ơn em đang rất là vội
thực hiện phép tính b) |-8+5|+|-6-13|
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