Question

c1 A= 7.(-10)+(-10).2

c2B=8.(-35)+(-35).2

Answer 1

câu 1: A=-10x(2+7)

              =-10x9

              =-90

câu 2 B=-35x(2+8)

            =-35x10

             =-350

Answer 2

\(A=7.\left(-10\right)+\left(-10\right).2\)

\(=-10\left(7+2\right)\)

\(=-10.9\)

\(=-90\)

Answer 3

\(B=8.\left(-35\right)+\left(-35\right).2\)

\(=-35\left(8+2\right)\)

\(=-35.10\)

\(=-350\)

Answer 4

A = 7 . ( -10 ) + ( -10 ) . 2

A = ( 7 + 2 ) . ( -10 )

A = 9 . ( -10 )

A = -90

B = 8 . ( -35 ) + ( -35 ) . 2

B = ( 8 + 2 ) . ( -35 )

B = 10 . ( -35 )

B = -350

~ Hok tốt ~

Answer 5

1,   7×(-10)+(-10)×2

=-70+(-20)

=-90

Answer 6

2,    8×(-35)+2×(-35)

=(-35)(8+2)

=(-35)×10

=-350