Question

a) 15.(-2).(-5).(-6)

b) 4.7. (-11) . (-2)

Giải cách giải giúp mình nha !

Answer 1

a)\(15.\left(-2\right).\left(-5\right).\left(-6\right)=\left(-30\right).30=\left(-900\right)\)

Answer 2

\(15.\left(-2\right).\left(-5\right).\left(-6\right)\)

\(=\left[15.\left(-2\right)\right].\left[\left(-5\right).\left(-6\right)\right]\)

\(=-30.30\)

\(=-900\)

\(4.7.\left(-11\right).\left(-2\right)\)

\(=28.\left(-11\right).\left(-2\right)\)

\(=\left[28.\left(-2\right)\right].\left(-11\right)\)

\(=\left(-56\right).\left(-11\right)\)

\(=616\)