Mathematics
Senior High
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なぜ2x乗＝−3/4は定義なしとなりますか?
(b) 3(22x) -2x+1 - 8 = 0
3 (2x)²-2(2x)-8=0
let u=2x
3uz-zu-8:0
(U-2) (31+4)=0
u=2
27=2
x=1
IN
u =
-
2x = -1/2
(not defined)
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