Example

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

Question

$$6r_{1}^{2}r_{2}^{2}r_{3}^{2}-8r_{1}^{3}r_{2}^{3}+4r_{1}^{4}r_{3}^{4}$$

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