(px-py+qx-qy) में सही गुणनखंड कौन से हैं?
What are the correct factors of (px-py+qx-qy)?
Explanation opens after your attempt
Correct Answer
B. ((p+q)(x-y))
Concept
Grouping gives (p(x-y)+q(x-y)). Taking common ((x-y)) gives ((p+q)(x-y)).
Why this answer is correct
The correct answer is B. ((p+q)(x-y)). Grouping gives (p(x-y)+q(x-y)). Taking common ((x-y)) gives ((p+q)(x-y)).
Exam Tip
समूह बनाने पर (p(x-y)+q(x-y)) मिलता है। इसलिए समान ((x-y)) निकालकर ((p+q)(x-y)) मिलेगा।
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