Mathematics
Senior High
Solved
大至急です😭。1問目の問題があってるかどうかと、2問目の問題の解き方を教えて欲しいです。
] 2次方程式x2-2x+4=0の2つの解をα, βとするとき,次の式の値を求めよ。
(1)3+β3
at B=2a33=4より
= (a+B)(a² + p² - ap)
=2(-4-4)
-16
a²
(2)
B2
+
B
a
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