Answers

2014-04-13T15:20:24+05:30
First of all its bodmas rule, which means
B-bracket()
O-orders(√,³)
D-division(÷)
M-multiply(×)
A-addition(+)
S-subtraction(- minus)
this is a rule,which has to be followed step wise
In this question,
7-2×4-2
WE WILL FIRST MAKE A BRACKET 
(7-2)(4-2)
note - 2 brackets beside each other without any sign beetween them, are to be multiplied
so here we start,
1)we will start by taking the first bracket s first no
7 multiplied by the second bracket
7(4-2)and then first bracket s second no multiplied by the second bracket
this whole step will be written as (please don t write before after its just for your conveinience)
BEFORE       AFTER
(7-2)×(4-2)     7(4-2)-2(4-2)
IF YOU KNOW THE INTEGER FORMULAS
YOU CAN SOLVE it easily
but still ill solve it
⇒7(4-2)-2(4-2)
⇒28-14-8+4
⇒14-4
⇒10
BEST OF LUCK FOR YOUR EXAMS!!!!!!

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