=1000x(26+74)-1000x100
=1000x100-1000x100
=0
26x1000-1000x100+74x1000
=(26-100+74)×1000
=0 × 1000
= 0
\(26\times1000-1000\times100+74\times1000\)
\(=1000\times\left(26-100+74\right)\)
\(=1000\times\text{ }\left[\left(-74\right)+74\right]\)
\(=1000\times0\)
\(=0\)
= 1000 * (26-100+ 74)
=1000 * 74
=74000
NẾU ĐÚNG THÌ KS CHO MÌNH NHÉ