Question

7+7²=?

Answer 1

56 nha bạn

Answer 2

7 + 7² = 7 + 49 = 56

Lưu ý: 7 + 7² \(\ne\) 7 . 7² = 7³

Answer 3

7 + 7² 

= 7 + ( 7 x 7 )

= 7 + 49

= 56

Answer 4

    7 + 7²

=  7 + 49 

= 56 .

Answer 5

7+7^2=7^3 vi 7 co nghia la7^1 ma cong hai luy thua cung co so ta giu nguyen co so roi cong so mu voi nhau ma so mu o day la 1 va 2 nen ta cong 1va 2 thi bang 3 nen7+7^2=7^3 duyet cho minh nhe