1.

Find the product of\[(12{{m}^{2}}n-3m{{n}^{2}}-1)\] and \[6{{m}^{2}}{{n}^{2}}.\]

A. \[72{{m}^{4}}{{n}^{3}}-18{{m}^{3}}{{n}^{4}}-6{{m}^{2}}{{n}^{2}}\]
B. \[24{{m}^{4}}{{n}^{3}}-15{{m}^{3}}{{n}^{4}}-5{{m}^{2}}{{n}^{2}}\]
C. \[60{{m}^{4}}{{n}^{3}}-16{{m}^{3}}{{n}^{4}}-4{{m}^{2}}{{n}^{2}}\]
D. \[48{{m}^{4}}{{n}^{3}}-12{{m}^{3}}{{n}^{4}}-8{{m}^{2}}{{n}^{2}}\]
Answer» B. \[24{{m}^{4}}{{n}^{3}}-15{{m}^{3}}{{n}^{4}}-5{{m}^{2}}{{n}^{2}}\]


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