Mathematics
Senior High
どうして〰️になるのか細かく教えてください＜(_ _)＞
(3与式%3 (yー2)xー(yー2リォ+リ(yーズり%=(ソー2))xー(+yz+2)x+y2(y+2)}/
=(yー2)(2-x)y?+2(2-x)yー 2-x)%3 (ソー2X2-x\y+zyーx2+x)
=(yー2(2-xX(yーx\y+(2+x)} =ー(x-yXyーzX2-xXx+y+z)
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