Example

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

Question

$$3 { 2 }^{ 2 } -4$$

Answer

8

Solution


Simplify  \({2}^{2}\)  to  \(4\).
\[3\times 4-4\]
Simplify  \(3\times 4\)  to  \(12\).
\[12-4\]
Simplify.
\[8\]
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