5 x 5 x 5 x 5 x5 x5 x 5 x 5 x 5 x 5 : 25 X10
5 x 5 x5 x5 x 5=
5 x 3 x 10=
1x2x3x4=
5 * 5 * 5* 5 * 5 = 3125
5 * 3 * 10 = 150
1 * 2 * 3 * 4 = 24.
5 x 5 x 5 x 5 x 5 = 3125
5 x 3 x 10 = 150
1x 2 x 3 x 4 = 24
Ủng hộ nha !!!!!~~~
Tính tổng
A=1 x 5 x 51 x52 x 53x54x55x56x57x58x59x510
kết quả là 5 ^ 56
Tìm x biết: 525x5x+1=525
Ta có : 525.5x+1=525
=> 5x+1=525:525
=> 5x+1=1
=> 5x=\(\frac{1}{5}\)\(=\frac{1}{5^1}\)
=> 5x=5-1
=> x=-1
11111111111111111111111111111111111111111111111111111111111 x 2222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222 x 5 x5 x5 x5 x5 x5 x5 x5 x55x5x55x5x5x5x5x5x5x5x5xx5x5x5x5x55x5x5x5x5x55x5555xxxx55x0x66666666x6x6x6x6x6x66x6x6x6x = ........
mik chỉ k cho 2 người thôi nhé
5 x 5 x5 x 5 x 5x 5x 5x 5x0 x5x2512000051515145163=?
0 vì trong đó có 1 thừa số là 0 nên tích cũng bằng 0
5 x 5 x5 x 5 x 5x 5x 5x 5x0 x5x2512000051515145163
Vì trong 1 biếu thức chỉ có phép nhân có chứa thừa số 0
Thì => tích đó bằng 0
tinh nhanh :
62 x 4 x 5 x 25 + 62 x 25 x5 x4 =
nhanh tay 1 like
= (62x5)x(4x25)+ (62x5)x(4x25)
= 310x100+310x100
= 100x(310+310)
= 62000
mình nha bạn
a]x + 1/2 =5/7
b]25/7 -x =8/9
c]15/11*x =5/3
đ]x x5/12 =8/9
a x+\(\frac{1}{2}\)=\(\frac{5}{7}\)
x=\(\frac{5}{7}\)-\(\frac{1}{2}\)
x=\(\frac{3}{14}\)
b \(\frac{25}{7}\)-x=\(\frac{8}{9}\)
x=\(\frac{25}{7}\)-\(\frac{8}{9}\)
x=\(\frac{169}{43}\)
c \(\frac{15}{11}\)*x=\(\frac{5}{3}\)
x=\(\frac{5}{3}\):\(\frac{15}{11}\)
x=\(\frac{11}{9}\)
D x*\(\frac{5}{12}\)=\(\frac{8}{9}\)
x=\(\frac{8}{9}\):\(\frac{5}{12}\)
x=\(\frac{32}{15}\)
a) \(x+\frac{1}{2}=\frac{5}{7}\)
\(x=\frac{5}{7}-\frac{1}{2}\)
\(x=\frac{10}{14}-\frac{7}{14}\)
\(x=\frac{3}{14}\)
b) \(\frac{25}{7}-x=\frac{8}{9}\)
\(x=\frac{25}{7}-\frac{8}{9}\)
\(x=\frac{225}{63}-\frac{56}{63}\)
\(x=\frac{169}{63}\)
c) \(\frac{15}{11}\cdot x=\frac{5}{3}\)
\(x=\frac{5}{3}:\frac{15}{11}\)
\(x=\frac{5}{3}\cdot\frac{11}{15}\)
\(x=\frac{11}{9}\)
d) \(x\cdot\frac{5}{12}=\frac{8}{9}\)
\(x=\frac{8}{9}:\frac{5}{12}\)
\(x=\frac{8}{9}\cdot\frac{12}{5}\)
\(x=\frac{32}{15}\)
a) x + 1/2 = 5/7
x = 5/7 - 1/2
x =3 /14
b) 25/7 - x = 8/9
x = 25/7 - 8/9
x = 169/63
c) 15/11 * x = 5/3
x = 5/3 : 15/11
x = 11/9
d) x * 5/12 = 8/9
x = 8/9 : 5/12
x = 32/15
22 /5 x 6 / 121 x 11/4 x3/5 x 1/3 x5 /4
\(\dfrac{22}{5}\times\dfrac{6}{121}\times\dfrac{11}{4}\times\dfrac{3}{5}\times\dfrac{1}{3}\times\dfrac{5}{4}\)
\(=\left(\dfrac{22}{5}\times\dfrac{5}{4}\right)\times\left(\dfrac{6}{121}\times\dfrac{11}{4}\right)\times\left(\dfrac{3}{5}\times\dfrac{1}{3}\right)\)
\(=\dfrac{11}{2}\times\dfrac{3}{22}\times\dfrac{1}{5}\)
\(=\dfrac{3}{20}\)
\(=\dfrac{22\times6\times11\times3\times1\times5}{5\times121\times4\times5\times3\times4}=\dfrac{11\times2\times6\times11\times1}{11\times11\times4\times5\times4}=\dfrac{2\times6\times1}{4\times5\times4}=\dfrac{18}{100}=\dfrac{9}{50}\)
-5.(x+1/5)-1/2.(x-2/3)=3/2.x5/6