Question

tính nhanh: \(Q=\left(\frac{-9}{25}\right).\frac{53}{3}-\left(\frac{-3}{5}\right)^2.\frac{22}{3}\)

Answer 1

\(Q=\left(\frac{-9}{25}\right).\frac{53}{3}-\left(\frac{-3}{5}\right)^2.\frac{22}{3}\)

\(Q=\left(\frac{-9}{25}\right).\frac{53}{3}-\left(\frac{9}{25}\right).\frac{22}{3}\)

\(Q=\left(\frac{9}{25}\right).\frac{-53}{3}-\left(\frac{9}{25}\right).\frac{22}{3}\)

\(Q=\frac{9}{25}.\left(\frac{-53}{3}-\frac{22}{3}\right)\)

\(Q=\frac{9}{25}.\frac{-75}{3}\)

\(Q=\frac{9}{25}.\left(-25\right)\)

\(Q=\frac{-225}{25}=-9\)

Answer 2

Q= \(\left(\frac{-9}{25}\right).\frac{53}{3}-\left(\frac{-3}{5}\right)^2.\frac{22}{3}\)

Q=\(\left(\frac{-9}{25}\right).\frac{53}{3}-\frac{9}{25}.\frac{22}{3}\)

Q=\(\frac{9}{25}.\left(\frac{-53}{3}\right)-\frac{9}{25}.\frac{22}{3}\)

Q=\(\frac{9}{25}.\left(\frac{-53}{3}-\frac{22}{3}\right)\)

Q=\(\frac{9}{25}.\left(-25\right)\)=\(-9\)