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3(x + 4) বিস্তাৰ কৰিলে পোৱা যায়

A3x + 7
Bx + 12
C3x + 4
D3x + 12
Answer & Solution
Correct answer: D. 3x + 12
বিতৰণ বিধিয়ে 3-ক x আৰু 4 উভয়ৰে সৈতে পূৰণ কৰে।
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