Question
$$\frac{3}{4}x\cdot\frac{6}{11}x\cdot\frac{33}{49}x\cdot\frac{14}{45} = 0$$
Answer
$$ x = 0 $$
Explanation
$$ \begin{aligned} \frac{3}{4}x\cdot\frac{6}{11}x\cdot\frac{33}{49}x\cdot\frac{14}{45} &= 0&& \text{multiply ALL terms by } \color{blue}{ 97020 }. \\[1 em]97020 \cdot \frac{3}{4}x\cdot\frac{6}{11}x\cdot\frac{33}{49}x\cdot\frac{14}{45} &= 97020\cdot0&& \text{cancel out the denominators} \\[1 em]8316x^3 &= 0&& \\[1 em] \end{aligned} $$
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