\(x^2+2xy+y^2-4z^2+4x+4y\) का गुणनखंड रूप क्या है?
What is the factorised form of \(x^2+2xy+y^2-4z^2+4x+4y\)?
Explanation opens after your attempt
D. ((x+y-2z+2)(x+y+2z+2))
Concept
Writing it as ((x+y)2+4(x+y)-4z-2) does not directly factor as option (D). Verify by expansion carefully.
Why this answer is correct
The correct answer is D. ((x+y-2z+2)(x+y+2z+2)). Writing it as ((x+y)2+4(x+y)-4z-2) does not directly factor as option (D). Verify by expansion carefully.
Exam Tip
इसे ((x+y)2+4(x+y)-4z-2) लिखने से तुरंत नहीं टूटता, पर ((x+y+2)2-(2z)2-4) नहीं है। सही जाँच विस्तार से करें।
Login to save your score, XP, coins and progress.
