2 x 2 x 2 x 4 x 33
= 4 x 2 x 4 x 33
= 8 x 4 x 33
= 32 x 33
= 1056
Vậy 2 x 2 x 2 x 4 x 33 = 1056
2 . 2 . 2 . 4 . 33 = 1056
Kq bằng 1056 nha bn
3 + 4 + 5 + 6 + 7 + 8 + 9 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 0 x 3 x 3 x 3 x 3 x 3 x3 x3 x3 x3 x33 x3 x3 x3 =
a) \(\left(\frac{2}{x+2}-\frac{4}{x^2+4x+4}\right)\)/\(\left(\frac{2}{x^2-4}+\frac{1}{2x-x}\right)\)
ai làm đúng mình tích cho
Tim x biết : (2x-1)^2 - (x+3)^2=0
Tính nhẩm:
a) 2 x 2 = ...... 3 x 3 = ......
2 x 4 = ...... 3 x 5 = ......
2 x 6 = ...... 3 x 7 = ......
2 x 8 = ...... 3 x 9 = ......
4 x 4 = ...... 5 x 5 = ......
4 x 2 = ...... 5 x 7 = ......
4 x 6 = ...... 5 x 9 = ......
4 x 8 = ...... 5 x 3 = ......
b) 200 x 4 = ...... 300 x 2 = ......
200 x 2 = ...... 300 x 3 = ......
400 x 2 = ...... 500 x 1 = ......
100 x 4 = ...... 100 x 3 = ......
Tìm x, biêt
a, \(x+x+2x=164\)
b, \(\frac{1}{2}x:1\frac{12}{7}x=\frac{23}{17}:x\)
c, \(2x+x-x+3x+2x=648\)
Nhanh mình tick
Tính nhẩm
3 x 4 = 2 x 6 = 4 x 3 = 5 x 6 =
3 x 7 = 2 x 8 = 4 x 7 = 5 x 4 =
3 x 5 = 2 x 4 = 4 x 9 = 5 x 7 =
3 x 8 = 2 x 9 = 4 x 4 = 5 x 9 =
Tính nhẩm:
| 20 x 4 = ....... | 200 x 3 = ....... | 2000 x 2 = ....... |
| 30 x 4 = ....... | 300 x 3 = ....... | 3000 x 2 = ....... |
| 40 x 4 = ....... | 400 x 3 = ....... | 4000 x 2 = ....... |
Tìm x:
a)x+1=0
b)x+2=9
c)2x+6=9