Mathematics
Junior High
-4abをなぜ-2abふたつにわけるのですか??
adーズーダー4al + 1
2
(16) α'b°-a- b°-4ab+1
=a°b°-d'-6°-2ab-2ab+1
=q°b°-2ab+1-d-2ab-6
=(a'b°-2ab+1)-(α°+2ab+b°)
=(ab-1)2-(a+b)2(18-x8)
=(ab-1+a+b)(ab-1-a-b)
y 8
TSY
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