Упростите форму записи выражений 1)6!•7 2)10!•11 3)15•14! 4)12•11! 5)(k-4)!(k^2-5k+6). Created by katyamosondz. algebra-ru

Упростите форму записи выражений 1)6!•7 2)10!•11 3)15•14! 4)12•11! 5)(k-4)!(k^2-...

August 2021 1 18 Report

Упростите форму записи выражений
1)6!•7
2)10!•11
3)15•14!
4)12•11!
5)(k-4)!(k^2-5k+6)

Answers & Comments

konrad509 $6!\cdot7=7!\\\\
10!\cdot11=11!\\\\
15\cdot14!=15!\\\\
12\cdot11!=12!\\\\
(k-4)!(k^2-5k+6)=\\
(k-4)!(k^2-2k-3k+6)=\\
(k-4)!(k(k-2)-3(k-2))=\\
(k-4)!(k-3)(k-2)
$

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