Question

write the squares of the following. (-3m-5n+2p)2​

Answer 1

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${( - 3m - 5n + 2p)}^{2} \\ = {( - 3m)}^{2} + ( { - 5n})^{2} + {(2p)}^{2} + 2 \times ( - 3m) \times (5n) + 2 \times ( - 5n) \times 2p + 2 \times 2p \times (3m) \\ = 9 {m}^{2} + 25 {n}^{2} + 4 {p}^{2} - 30mn - 20np + 12mp$

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