1/2
1/2…
X = ½
X=1/2
3^(2x+4)-3^2x = 240 3^2x( 3⁴-1)=240 3^2x= 3¹ x=1/2
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Δ
1/2
1/2
1/2
1/2
1/2…
1/2
1/2
X = ½
X=1/2
3^(2x+4)-3^2x = 240
3^2x( 3⁴-1)=240 3^2x= 3¹ x=1/2
X=1/2