Question

Factorise-
225m²-100m²

Answer 1

Step-by-step explanation:

$225 {m}^{2} - 100 {n}^{2}$

${(15m)}^{2} - ( {10n)}^{2}$

$(15m + 10n)(15m - 10n)$

$25(3m + 2n)(3m - 2n)$

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