IAM CONFUSED IN DIVISIONS SIGNS

Asked by Nupur Gupta | 27th Jul, 2014, 01:41: PM

Expert Answer:

L e t space u s space c o n s i d e r space s o m e space e x a m p l e s. 1. space E v a l u a t e space t h e space e x p r e s s i o n space 12 obelus divided by open parentheses minus 3 close parentheses plus open parentheses minus 3 close parentheses cross times 2. 12 obelus divided by open parentheses minus 3 close parentheses plus open parentheses minus 3 close parentheses cross times 2 space equals open parentheses minus 4 close parentheses plus open parentheses minus 3 close parentheses cross times 2 space space space space space space space open square brackets F i r s t space t a k e space d i v i s i o n space o p e r a t i o n space f r o m space l e f t space t o space r i g h t close square brackets equals open parentheses minus 4 close parentheses plus open parentheses minus 3 close parentheses cross times 2 space space space space space space space open square brackets N o w space c o n s i d e r space t h e space m u l t i p l i c a t i o n space o p e r a t i o n space f r o m space l e f t space t o space r i g h t close square brackets equals open parentheses minus 4 close parentheses plus open parentheses minus 6 close parentheses equals minus 10 2. space E v a l u a t e space t h e space e x p r e s s i o o n space open parentheses 5 minus 9 close parentheses cross times 10 obelus divided by open parentheses minus 4 close parentheses. open parentheses 5 minus 9 close parentheses cross times 10 obelus divided by open parentheses minus 4 close parentheses equals open parentheses minus 4 close parentheses cross times 10 obelus divided by open parentheses minus 4 close parentheses space space space space space space space space open square brackets F i r s t space c o m p u t e space t h e space o p e r a t i o n space i n space t h e space b r a c k e t close square brackets equals open parentheses minus 4 close parentheses cross times 10 obelus divided by open parentheses minus 4 close parentheses space space space space space space space space space space space open square brackets N o w space c o n s i d e r space t h e space m u l t i p l i c a t i o n space o p e r a t i o n space f r o m space l e f t space t o space r i g h t close square brackets equals open parentheses minus 40 close parentheses obelus divided by open parentheses minus 4 close parentheses equals 10

Answered by Vimala Ramamurthy | 28th Jul, 2014, 10:38: AM

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