Question

10³+2.5³+5³

       55     

các bạn tính giúp mình với

 

 

 

Answer 1

\(\frac{10^3+2.5^3+5^3}{55}\)

\(=\frac{5^3+\left(2^3+2+1\right)}{55}\)

\(=\frac{5^3.11}{5.11}\)

\(=5^2=25\)

Answer 2

ta có đề bài 

\(=\frac{2^3.5^3+2.5^3+5^3}{5.11}=\frac{5^3\left(2^3+2+1\right)}{5.11}\) \(=\frac{5^3.11}{5.11}=5^2=25\)

Answer 3

\(\frac{10^3+2.5^3+5^3}{55}\)

=\(\frac{5^3\left(2^3+2+1\right)}{55}\)

=\(\frac{5^3.11}{5.11}\)

=\(5^2=25\)

Answer 4

Ko chép lại đề

= 2³. 5³ + 2. 5³ + 5³ / 55

= 5³. ( 2³ + 2 + 1 )/55

= 5³. 11 /55 = 5³ /5 = 5²= 25

Answer 5

\(\frac{10^3+2\cdot5^3+5^3}{55}\)

\(=\frac{1000+2\cdot125+125}{55}\)

\(=\frac{125\left(8+2+1\right)}{55}\)

\(=\frac{125\cdot11}{55}\)

\(=\frac{25\cdot55}{55}=25\)

Answer 6

bang 25