Mathematics
Senior High
Resolved
この計算をもう少し細かく教えて下さい
(2)
ƒ(b)—ƒ(a) _ (b²−7b+4)−(a²−7a+4)
b-a
b-a
(b+a)(b—a)−7(b—a)=b+a-7
=
57
b-a
v+008
x+001
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