Question

4 x + y x 3 x - 2Y
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Answer 1

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$4 \times + y { \times }^{1} x 3 { \times }^{1} - 2y \\ 4 \times + y { \times }^{1 + 1}x3 - 2y \\ 4 \times + y { \times }^{2}x3 - 2y \\ 3 \times + 3 { \times }^{2} y - 2y \\ = 4 \times + 3 { \times }^{2} y - 2y$

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