Mathematics
Senior High
Solved
高一因数分解です。回答の所の+1がどこから出てきたのかがあまりよく分かりません。教えて頂きたいですお願いします( ᐡ. ̫ .ᐡ )
=(x+3)(y+2)
atbさ0-2.1.
31
40 (1)与式=(a?-1)b+(a-1) -
=(a+1Xa-1)6+(a-1)
=(a-1{(a+1)bfD
=(a-1Xab+b+1)
(2) 与式3(2x-8)y+(x?-16)
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