allery3(x + 4) ਦਾ ਵਿਸਤਾਰ ਕਰਨ ਨਾਲ ਮਿਲਦਾ ਹੈ
A3x + 7
Bx + 12
C3x + 4
D3x + 12
Answer & Solution
Correct answer: D. 3x + 12
ਵੰਡਣ ਵਾਲਾ ਨਿਯਮ 3 ਨੂੰ x ਅਤੇ 4 ਦੋਵਾਂ ਨਾਲ ਗੁਣਾ ਕਰਦਾ ਹੈ।
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