Question

Dați 10 exemple de
4x25+3x25=25x(4+3)
10 de astea de jos
35x7-6x35=35x(7-6)
Și 10 de astea
ax5+ax7-3xa=ax(5+7-3)

Answer 1

2x12+2x32=2x(12+32)=2x44=88
3x12+3x21=3x(12+21)=3x33=99
21x3+21x7=21x(3+7)=21x10=210
35x4+35x6=35x(4+6)=35x10=350
7x45+45x3=45x(7+3)=45x10=450
98x2+98x8=98x(2+8)=98x10=980
56x2+3x56=56x(2+3)=56x5=280
97x1+97x9=97x(1+9)=97x10=970

23x9-7x23=23x(9-7)=23x2=46
89x24-89x19=89x(24-19)=89x5=445
32x87-32x78=32x(87-78)=32x9=288
67x6-4x67=67x(6-4)=67x2=134
21x9-21x8=21x(9-8)=21x1=21
45x10-45x9=45x(10-9)=45x1=45

23x9-23x7+23x8=23x(9-7+8)=23x10=230
42x10-42x9+42x1=42x(10-9+1)=42x2=84
8x22-22x7+9x22=22x(8-7+9)=22x10=220
88x12-88x6+88x4=88x(12-6+4)=88x10=880