व्यंजक (3(4x-5)-[2x-3(1-x)]) का सरल रूप क्या है?
What is the simplified form of (3(4x-5)-[2x-3(1-x)])?
Explanation opens after your attempt
A. (7x-12)
Concept
Inside (2x-3+3x=5x-3), so (12x-15-(5x-3)=7x-12). Simplify inside the square bracket first.
Why this answer is correct
The correct answer is A. (7x-12). Inside (2x-3+3x=5x-3), so (12x-15-(5x-3)=7x-12). Simplify inside the square bracket first.
Exam Tip
अंदर (2x-3+3x=5x-3), इसलिए (12x-15-(5x-3)=7x-12)। वर्ग कोष्ठक के अंदर पहले सरल करें।
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