Mathematics
Senior High
どうして答えと自分の解答が違うのですか?
(1) P=x°+4x+3y?-6y+2
=(x+2)?-2°+3y?-6y+2
=(x+2)+3(y-1)-3·12-2
=(x+2)?+3(y-1)。15
P- 8:t 3y +4%-64t2
CX+4)+Cどー63)+2
r8+)-4t3(g-20t2
4+3(8-2の2
(%t2y+3(8 1+2
=CX+2)+ 3(4-0-+1
2
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3を掛けてるとは、y-1にってことですか?