Mathematics
Senior High
Resolved
因数分解です。
4行目から5行目教えてください
1
+1)(x²+x+1)
1)(x-x+1)
こと 作業
a.b²+63
+3.2a 62-633.
(4) a² (b−c)+b² (c-a) + c² (a - b)
(b-c)a²+b²c-ab² + ac²bc²
*
-
= (b-c)a² - (b2-c²)a+bc(b-c)
= (b−c)a² - (b+c)(b-c)a+bc(b-c)
= (b-c){a² (b+c)a+bc}
=(b-c)(a-b)(a-c)2
=-(a-b)(b-c)(c-a) tiss
ると
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