Example

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

Question

$$\sqrt{ 225 \times 0.16 \times 400 }$$

Answer

120

Solution


Simplify  \(225\times 0.16\)  to  \(36\).
\[\sqrt{36\times 400}\]
Simplify  \(36\times 400\)  to  \(14400\).
\[\sqrt{14400}\]
Since \(120\times 120=14400\), the square root of \(14400\) is \(120\).
\[120\]
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