Mathematics
Senior High
Solved
教えて頂けると助かります。
なぜ先頭にマイナスをいれ直さなくては行けないんですか?
よろしくお願いします🙇
12 で1の/
(3) (与式)=(9**一6xキ1)一49"
=(3z-1)*ー(2y“
={(3z一1)二2yj((3ァメーリー2yj)
=(3x二2ター1) (3z一2ッー1)
(4) 6馬式)= (りう*ー2x“ー8
(2十2)(x*ー4
ー =(yz寺2)(x土2)(z-2)
5] G) (三式)ニー2(x* 際2
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