Question

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Answer 1

Ответ:

$1)18 {t}^{4} - 27 {t}^{3} {x}^{5} = 9 {t}^{4} (2 - 3 {x}^{3} )$

$2)5 {a}^{2} - 45 {b}^{2} = 5(a - 3b)(a + 3b)$