✨ Best Answer ✨
a-b=Mと置くと、
(a-b)(a-b-8)+12
=M(M-8)+12
=M²-8M+12
=(M-2)(M-6)
戻して、
=(a-b-2)(a-b-6)
✨ Best Answer ✨
a-b=Mと置くと、
(a-b)(a-b-8)+12
=M(M-8)+12
=M²-8M+12
=(M-2)(M-6)
戻して、
=(a-b-2)(a-b-6)
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