question_answer

The expanded form of \[{{\left( 2x+3y-5z \right)}^{2}}\]is ___­­­­­___.

A)  \[4{{x}^{2}}+9{{y}^{2}}+\text{ }25{{z}^{2}}+12xy-30yz-20zx\]

B)  \[5{{x}^{2}}-6{{y}^{2}}+15{{z}^{2}}+12xy-36{{y}^{6}}+21x{{y}^{2}}\]

C)  \[8{{x}^{2}}+{{y}^{2}}-{{z}^{2}}+7{{x}^{2}}+2{{z}^{2}}+9{{z}^{2}}y\]

D)  \[1{{z}^{2}}-{{z}^{2}}-{{8}^{2}}-{{75}^{2}}+2{{x}^{2}}-98{{y}^{2}}\]

E)  None of these