A) 10
B) 9
C) 7
D) 6
Correct Answer: B
Solution :
\[~6.5\times 6.5-\text{ }45.5\text{ }+3.5\times 3.5\] \[={{(6.5)}^{2}}-2\times 6.5\times 3.5+{{(3.5)}^{2}}\] \[={{(6.5-3.5)}^{2}}\] \[={{3}^{2}}=9\]You need to login to perform this action.
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