किस विकल्प में (2a-3b+5a+7b-4a) का सही सरल रूप है?
Which option gives the correct simplified form of (2a-3b+5a+7b-4a)?
Explanation opens after your attempt
A. (3a+4b)
Concept
(2a+5a-4a=3a) and (-3b+7b=4b). Combine only terms with the same variable.
Why this answer is correct
The correct answer is A. (3a+4b). (2a+5a-4a=3a) and (-3b+7b=4b). Combine only terms with the same variable.
Exam Tip
(2a+5a-4a=3a) और (-3b+7b=4b)। समान चर के पद ही मिलाएं।
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