Question

76.(-42)+76.(-14)+24.(-56)

 

Answer 1

\(76.\left(-42\right)+76.\left(-14\right)+24.\left(-56\right)\)

\(=76.\left(-42+-14\right)+24.\left(-56\right)\)

\(=76.\left(-56\right)+24.\left(-56\right)\)

\(=\left(76+24\right).-56\)

\(=100.-56\)

\(=-5600\)

Answer 2

\(76\left(-42\right)+76\left(-14\right)+24\left(-56\right)\)

\(=76\left[\left(-42\right)+\left(-14\right)\right]+24\left(-56\right)\)

\(=76.\left(-56\right)+24.\left(-56\right)\)

\(=\left(-56\right)\left(76+24\right)\)

\(=\left(-56\right)100=-5600\)