Question

tính nhanh

\(\frac{-15}{4}x\frac{9}{11}+\frac{15}{4}x\frac{15}{11}-\frac{15}{4}x\frac{6}{11}\)

Chú ý x là dấu nhân nhé

 

Answer 1

\(\frac{-15}{4}\times\frac{9}{11}+\frac{15}{4}\times\frac{15}{11}-\frac{15}{4}\times\frac{6}{11}\)

\(=\frac{15}{4}\times\left(\frac{-9}{11}+\frac{15}{11}-\frac{6}{11}\right)\)

\(=\frac{15}{4}\times0\)

\(=0\)

Answer 2

\(=\frac{15}{4}\times\left(-\frac{9}{11}\right)+\frac{15}{4}\times\frac{15}{11}+\frac{15}{4}\times\left(-\frac{6}{11}\right)\)

\(=\frac{15}{4}\times\left(-\frac{9}{11}+\frac{15}{11}+\left(-\frac{6}{11}\right)\right)\)

\(=\frac{15}{4}\times0\)

\(=0\)