\(\frac{3}{17}\times121\times\frac{34}{6}+80\times\left(0,5-5\div10\right)\)

= \(\frac{3\times121\times34}{17\times6}+80\times0\)

=\(\frac{1\times121\times2}{2}+0=121+0=121\)

a: \(=\dfrac{1}{3}\cdot\dfrac{1}{3}\cdot\dfrac{-17}{18}\cdot\dfrac{14}{17}=\dfrac{-14}{18\cdot9}=\dfrac{-14}{162}=\dfrac{-7}{81}\)

b: \(=\dfrac{12}{4}+\dfrac{35}{11}\cdot\dfrac{121}{245}=3+\dfrac{11}{7}=\dfrac{32}{7}\)

Cảm ơn bạn nha

a: \(=\dfrac{15}{135}\cdot\dfrac{-17}{18}\cdot\dfrac{14}{17}=\dfrac{1}{9}\cdot\dfrac{-7}{9}=\dfrac{-7}{81}\)

b: \(=3+\dfrac{35}{11}\cdot\dfrac{121}{245}=3+\dfrac{11}{7}=\dfrac{32}{7}\)

17[21-(-111)]+17[29-121]=17.132+17.(-92)=17.[132+(-92)]=17.40=680

 đúng ko?

a) 300

b) -3775

c) - 1615

c có k cho mik k

a) Ta có: \(A=121325+148520-92158\)

Mà:

121325 không chia hết cho 2

148520 chia hết cho 2

92158 chia hết cho 2

⇒ \(A=121325+148520-92158\) không chia hết cho 2

b) Ta có: \(B=51\cdot734\cdot154736\)

\(B=17\cdot3\cdot734\cdot154736\)

Mà: \(17\) ⋮ 17

\(\Rightarrow B=17\cdot3\cdot734\cdot154736\) chia hết cho 17

\(\Rightarrow B=51\cdot734\cdot154736\) chia hết cho 17 

cả lời giải nhá