Question

-(917+715)+(817-78)=

Answer 1

-(917 + 715) + (817 - 78)

= (-1632) + 739

= -893

Chúc bạn học tốt!! ^^

Answer 2

\(-\left(917+715\right)+\left(817-78\right)=-917+715+817-78=-100+715-78=537\)