Example

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

Question

$$(5^{0}+4^{-1}); \times2^{2}$$

Answer

$$1+4^-1;*4$$

Solution


Use Rule of Zero: \({x}^{0}=1\).
\[\begin{aligned}&1+{4}^{-1}\\&\times {2}^{2}\end{aligned}\]
Simplify  \({2}^{2}\)  to  \(4\).
\[\begin{aligned}&1+{4}^{-1}\\&\times 4\end{aligned}\]
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