Mathematics
Senior High
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(6)が分かりません…💦
419 次の方程式の異なる実数解の個数を求めよ。
*(1)_x³−6x+7=0
*(3) -x³+12x+3=0
*(5) x4-4x³-2x²+12x+4=0
(2) x³+3x²-9x+5=0
(4) x³+4x²+6x-1=0
(6) 3x4-4x³+1=0
p.230
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ありがとうございます！