Example

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

Question

$$12 \times 12+9 \times 9+8 \times 8$$

Answer

289

Solution


Simplify  \(12\times 12\)  to  \(144\).
\[144+9\times 9+8\times 8\]
Simplify  \(9\times 9\)  to  \(81\).
\[144+81+8\times 8\]
Simplify  \(8\times 8\)  to  \(64\).
\[144+81+64\]
Simplify  \(144+81\)  to  \(225\).
\[225+64\]
Simplify.
\[289\]
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