Mathematics
Junior High
Solved
線の部分なぜそうなるのですか?
xcm
P
E
5cm
1 2
X
2(5-x)xxx
x(
33
2
3
x(5-x)=4
-2x²+10x-12=0
2
X x -5x+6=0
(x-2)(x-3)=0
x=2, x=3
x = 2,
ノシ
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