Mathematics
Junior High
因数分解です
答えと全然違うんですけど、解き方を教えてください。
(x²+4x)-8 (x²+4x)-48
2
= A² - 8A - 48 –12+4
VC
(A-12) (A+4)
= (x²+4x-12) (x²+4x+4)
(x+2) x-2z+6)
Answers
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