(m+n) (3m pangkat 2+mn+2n pangkat 2)

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(m+n) (3m pangkat 2+mn+2n pangkat 2)

Jawaban Terkonfirmasi

(m+n)(3m²+mn+2n²) = [m(3m²+mn+2n²) + n(3m²+mn+2n²)]
                                  = 3m³ + m²n + 2mn² + 3m²n + mn² + 2n³
                                  = 3m³ + 4m²n + 3mn² + 2n³