Question

-48+48*(-78)+48*(-21) = ?

 

 

Answer 1

-48+48*(-78)+48*(-21)

= 48*(-1)+48*(-78)+48*(-21)

= 48*(-1-78-21)

= 48*(-100)=-4800

Answer 2

=-4800

Answer 3

\(-48+48\times\left(-78\right)+48\times\left(-21\right)\)

\(=\left(-48\right)\times1+48\times\left(-78\right)+48\times\left(-21\right)\)

\(=48\times\left(-1\right)+48\times\left(-78\right)+48\times\left(-21\right)\)

\(=48\times\text{[}\left(-1\right)+\left(-78\right)+\left(-21\right)\text{]}\)

\(=48\times\text{[}-\left(1+78+21\right)\text{]}\)

\(=48\times\left(-100\right)=-4800\)

Answer 4

\(-48+48\cdot\left(-78\right)+48\cdot\left(-21\right)\)

\(=-48+\left(-48\right)\cdot78+\left(-48\right)\cdot21\)

\(=-48\cdot\left(1+78+21\right)\)

\(=-48\cdot100\)

\(=-4800\)

Answer 5

\(-48+48.\left(-78\right)+48.\left(-21\right)\)

\(=-48+\left(-48\right).78+\left(-48\right).21\)

\(=-48.\left(1+78+21\right)\)

\(=-48.100\)

\(=-4800\)

Answer 6

thank kiu nha

Answer 7

-48+48x(-78)+48x21

=(-48)x1+48x(-78)+48x(-21)

=48x(-1)+48x(-78)+48x(-21)

=48x[(-1)+(-78)+(-21)]

=48x(-100)

=-4800