Question

${64m}^{2} - 48m + 9$
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Answer 1

Resposta:

$64 {m}^{2} - 48m + 9 \\ {8}^{2} {m}^{2} - 2 \times 8m \times 3 + {3}^{2} \\ (8m) {}^{2} - 2 \times 8m \times 3 + {3}^{2} \\ (8m - 3) {}^{2}$