Example

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

Question

$$(x+\frac{4}{x})^{2}$$

Expand

$x^{2}+8+\frac{16}{x^{2}}$

Evaluate

$\left(x+\frac{4}{x}\right)^{2}$

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