Mathematics
Senior High
Resolved
(4),(6)の解き方が分からないので、解説お願い致します。
139 次の方程式を解け。
(2) 2x°-7x2+2=0
(4)(x-1)(x-2)(x-3)=4·3·2
*(1) 4x°+3x-2=0
(3) 3x°-10x?+1=0
*(5)(x-2x)?-(x°-2x)-6=0
(6)))x*+x?+1=0
(7)(x?-5x+1)(x?-5x+9)+15=0
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