( (x+5)2+(x-5)2 ) का सरल रूप क्या है?
What is the simplified form of ( (x+5)2+(x-5)2 )?
Explanation opens after your attempt
B. \(2x^2+50\)
Concept
( (a+b)2+(a-b)2=2a-2+2b-2 ). Here it is \(2x^2+2\cdot25=2x^2+50\).
Why this answer is correct
The correct answer is B. \(2x^2+50\). ( (a+b)2+(a-b)2=2a-2+2b-2 ). Here it is \(2x^2+2\cdot25=2x^2+50\).
Exam Tip
( (a+b)2+(a-b)2=2a-2+2b-2 ) होता है। यहाँ \(2x^2+2\cdot25=2x^2+50\) है।
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