Mathematics
Senior High
Resolved
赤ペンのところの式変形のやり方が分かりません💦
教えていただきたいです🙇🏻♀️
(1)
(2)
(46-1)-(4a-1)
b-a
=
4(b-a)
b-
- a
(62 26+2)-(a 2 - 2a+2)
4
b-a
(b² - a²)-2(b-a)
b-a
(b-a)(b+a-2)
b-a
=b+a-2
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