Ответ:
1)36a^2-25b^2=(6a-5b)^2
2)20^2-12^2 400-144 256 64 8
-------------------- = -------------- = ---------- = -------- = -----
64 64 64 16 2
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Ответ:
1)36a^2-25b^2=(6a-5b)^2
2)20^2-12^2 400-144 256 64 8
-------------------- = -------------- = ---------- = -------- = -----
64 64 64 16 2