помогите, математика 7 класс
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14 a³b⁵ 25n² - m²
--------- • --------------
21a⁴b 5n³ - mn²
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14 a³b⁵ 25n² - m²
--------- • --------------
21a⁴b 5n³ - mn²
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14a³b⁵⠀⠀25n² - m²
--------- • -------------⠀=
21a⁴b⠀⠀5n³ - mn²
⠀⠀2b⁴⠀⠀⠀(5n - m)(5n + m)
= ------- • ------------------------ =
⠀⠀3a⠀⠀⠀⠀⠀n²(5n - m)
⠀⠀2b⁴⠀⠀⠀5n + m
= ------- • -------------- =
⠀⠀ 3a⠀⠀⠀⠀⠀n²
⠀⠀2b⁴(5n + m)⠀⠀⠀10b⁴n + 2b⁴m
= ------------------ = ----------------------
⠀⠀⠀ ⠀3an²⠀⠀⠀⠀⠀⠀⠀⠀3an²