Mathematics
Senior High
225番の解き方が分かりません、、教えて欲しいてます!
√2x2+2x=2√2-x
□225 次の2次方程式が異なる2つの実数解をもつとき,定数kの値の範囲を求めよ。
(1 * x22kx+k²-2k=0
A 221
(2)
-x+2(k-3)x-k²=0
(3)* kx2+2x-1=0
P
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