572354668*46589-35676899+[6755:5]=26665431627452-35676899+1351=26665395950553+1351=26665395951904
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5 x 5 x 5 x 5 x 5 x 5 x 5 x 5 x 5=?
tính dưới dạng lũy thừa
1. -2/9 x 15/17 + -2/9 x 2/17
2. -5/3 x 6/5 + -7/9 x 3/10
3. 15/20 x 7/5 + -9/7 x -6/4
4.-25/13 x 5/19 + -25/13 x 14/19
5 -7/13 x 13/5 + -9/7 x 5/3
6. 27/35 x 5/9 - 2/7 x -7/5
7. 10/13 x 13/5 + {-9/5} x 10/3
8. 100/27 x 9/20 + 40% x 5/3
9. 1,5 x 5/12 + 1/4 x 3/4
10. 2 1/2 x 7/5 + {-9/10} x 2/3
11. X + 45% = 2 1/2 -5/3
12. 80% + X = -5/2 + 3/4
13. 4/25 - X =-5/2 + -3/10
Chuyển thành lũy thừa :
a ) 5 x 5 x 5 x 5 x 5 x 5 = ?
b ) 7 x 7 x 7 x 7 x 7 x 7 x 7 = ?
a,1/3 .(x-2/5)=3/4 b, 7/3:(x-2/3)=4/5 c,1/3.(x-2/5)=4/5 d, 2/3.(x-1/2)-1/4.(x-2/5)=7/3 e,3/7 .(x-2/3)+1/2=5/4.(x-2) f,1/2.(x-3)+1/3.(x-4)+1/4.(x-5)=1/5 g,[2/3.(x-1/2)-4/5]:(x-1/3)=21/5 h, {x-[1/2.(x-3)+11/5]}:(x-1/2)=3/5 i,x.(x-2/5)-(x+2).x+11/4=4/3
Tìm x biết (x-5) .(x-5). (x-5) .(x-5). (x-5) = 32
5 x 5 x 5 x 5 x 5 = ,,,,?
A=5^0+5^2+5^4+...+5^x (x thuộc N;x lớn hơn hoặc bằng 2)
A=5^1+5^3+5^5+...+5^x (x thuộc N;x lớn hơn hoặc bằng 2)
A=5^1+5^3+5^5+...+5^x (x thuộc N;x lớn hơn hoặc bằng 2)
CẦN GẤP MAI NỘP RỒI
1) 5.2²+ (x+3)5² 6) 4³ - (x-2)5²
2) 2³+(x-3²) 5³-4³ 7) 3⁴+ (x+5)5.3²
3) 3.2 + (x+5²)10² 8) 2³.5 - (x+ 3²)10
4) 2⁶+(5+x) 3⁴ 9) 3³ - (x+2⁴)7
5) 5+(x + 3³) 2⁶ 10) 7² - (15+x)5.2²
Đọc tiếp
1) 5.2²+ (x+3)=5² 6) 4³ - (x-2)=5²
2) 2³+(x-3²)= 5³-4³ 7) 3⁴+ (x+5)=5.3²
3) 3.2 + (x+5²)=10² 8) 2³.5 - (x+ 3²)=10
4) 2⁶+(5+x)= 3⁴ 9) 3³ - (x+2⁴)=7
5) 5+(x + 3³)= 2⁶ 10) 7² - (15+x)=5.2²
1) 7. (3x+5)+2.(7x+14)98. 2) 4. (x -5)+3.(x+7)22
3) 5.(4-x) +7.(x-2)24. 4) 3.(x -5)+6.(x+3)12
5) 4-x+5.(x+2)38. 6) 5.( x-3)+2.(x+8)22
7) 5.(x-7)+10.(4+x)20. 8) 4.(x+10)+8.(x-3)24
9) 4.(5-x)+5.(x-2)15. 10) 4.(x-1)+3.(x-2)-1
Đọc tiếp
1) 7. (3x+5)+2.(7x+14)=98. 2) 4. (x -5)+3.(x+7)=22
3) 5.(4-x) +7.(x-2)=24. 4) 3.(x -5)+6.(x+3)=12
5) 4-x+5.(x+2)=38. 6) 5.( x-3)+2.(x+8)=22
7) 5.(x-7)+10.(4+x)=20. 8) 4.(x+10)+8.(x-3)=24
9) 4.(5-x)+5.(x-2)=15. 10) 4.(x-1)+3.(x-2)=-1