(x+x+x+x) किसके बराबर है?
(x+x+x+x) is equal to which expression?
Explanation opens after your attempt
B. (4x)
Concept
Repeated addition of the same variable becomes multiplication. Adding (x) four times gives (4x).
Why this answer is correct
The correct answer is B. (4x). Repeated addition of the same variable becomes multiplication. Adding (x) four times gives (4x).
Exam Tip
एक ही चर का बार-बार जोड़ गुणा में बदलता है। (4) बार (x) जोड़ने पर (4x) मिलता है।
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