Question

factorise;
${m}^{2} + {4n}^{2} + {25p}^{2} + 4mn - 20np - 10pm$
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Answer 1

Answer:

${m}^{2} + ({2n})^{2} + ( { - 5p})^{2} + 2 \times m \times 2n + 2 \times 2n \times ( - 5p) + 2 \times ( - 5p) \times m \\ {(m + 2n - 5p)}^{2}$