A) \[8{{x}^{3}}-2{{x}^{2}}+9\]
B) \[6{{x}^{2}}y-3xy+10x-25\]
C) \[5x-3{{x}^{2}}+6\]
D) \[6xy-3{{x}^{2}}y+10x-25\]
Correct Answer: B
Solution :
Difference = \[\begin{align} & 10{{x}^{2y}}\,\,\,\,\,\,\,\,-\,\,\,\,\,\,6xy\,\,\,\,\,\,\,\,+\,\,\,\,\,\,\,15x-\,\,\,\,\,\,\,\,25 \\ & 4{{x}^{2}}y\,\,\,\,\,\,\,\,\,-\,\,\,\,\,\,3xy\,\,\,\,\,\,\,\,+\,\,\,\,\,\,\,15x \\ & (-)\,\,\,\,\,\,\,\,\,\,\,\,(+)\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(-) \\ & \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ \\ & 6{{x}^{2}}y\,\,\,\,\,\,\,\,\,-\,\,\,\,\,\,\,3xy\,\,\,\,\,\,\,+\,\,\,\,\,\,\,10x\,\,\,\,-\,\,\,\,\,\,25 \\ & \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ \\ \end{align}\]
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