Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$${ 63 }^{ 2 } - { 62 }^{ 2 }$$

Answer

125

Solution


Simplify  \({63}^{2}\)  to  \(3969\).
\[3969-{62}^{2}\]
Simplify  \({62}^{2}\)  to  \(3844\).
\[3969-3844\]
Simplify.
\[125\]
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