( (2x+3)(2x-7) ) का विस्तार क्या है?
What is the expansion of ( (2x+3)(2x-7) )?
Explanation opens after your attempt
A. \(4x^2-8x-21\)
Concept
( (2x)(2x)=4x-2 ), ( -14x+6x=-8x ), and \(3\times(-7)=-21\). Exam tip: combine like terms.
Why this answer is correct
The correct answer is A. \(4x^2-8x-21\). ( (2x)(2x)=4x-2 ), ( -14x+6x=-8x ), and \(3\times(-7)=-21\). Exam tip: combine like terms.
Exam Tip
( (2x)(2x)=4x-2 ), ( -14x+6x=-8x ), और \(3\times(-7)=-21\)। परीक्षा में समान पद जोड़ें।
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