Question

tinh nhanh 2x31x21+4x6x42+8x27x3 guip minh nhe cac ban

Answer 1

trong 10 phut nua co ai jup dc minh k

Answer 2

2x31x12+4x6x42+8x27x3

=(2x31x12)+(4x6x42)+(8x27x3)

=(24x31)+(24x42)+(24x27)

=24x(31+42+27)

=24x100

=2400

Answer 3

2 x 31 x21 + 4 x 6 x 42 + 8 x 27 x 3=

(2x31x21) + (4x6x42) + (8x27x3)=

62x21 + 24x 42 + 8x81=

1302 + 1008 + 648=

2958