कौन सा व्यंजक (x) और (y) के योग के वर्ग में से (xy) घटाने को दर्शाता है?
Which expression represents subtracting (xy) from the square of the sum of (x) and (y)?
Explanation opens after your attempt
A. ((x+y)2-xy)
Concept
First the square of the sum (x+y) is formed and then (xy) is subtracted. Brackets are necessary for the square of the whole sum.
Why this answer is correct
The correct answer is A. ((x+y)2-xy). First the square of the sum (x+y) is formed and then (xy) is subtracted. Brackets are necessary for the square of the whole sum.
Exam Tip
पहले योग (x+y) का वर्ग बनता है और फिर (xy) घटता है। पूरे योग के वर्ग के लिए कोष्ठक जरूरी है।
Login to save your score, XP, coins and progress.
