Mathematics
Senior High
Solved
黄色のラインを引いたところなのですが、なぜこのようになるのかが分かりません💦
=(x+1)(x−1}\x˜+2)
(3) 4a4-17a2b²+4b4=4(a²)2-17a2b2+4(62) 2
=(a²-4b²)(4a²-6²)
=(a+2b)(a-2b)(2a+b)(2a-b)
PRACTICE 13Ⓡ
切手の
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