A) \[16{{x}^{2}}-25xy\]
B) \[16{{x}^{2}}-5{{y}^{2}}\]
C) \[16{{x}^{2}}-5{{y}^{2}}\]
D) \[16{{x}^{2}}-{{y}^{2}}\]
Correct Answer: C
Solution :
(c): use \[\left( a+b \right)\left( a-b \right)={{a}^{2}}-{{b}^{2}}.\]
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