Răspuns :
(25/100)ˣ⁺¹=1/4⁴
(1/4)ˣ⁺¹=4⁻⁴
1/4⁻⁽ˣ⁺¹⁾=4⁻⁴
4⁻ˣ⁻¹=-4
-x-1=-4
x=3
(1/4)ˣ⁺¹=4⁻⁴
1/4⁻⁽ˣ⁺¹⁾=4⁻⁴
4⁻ˣ⁻¹=-4
-x-1=-4
x=3
1 1 1 1
( --- )ˣ⁻¹ = ------ => --------- = ------ => 2²ˣ⁻² = 2⁸ => 2x-2=8 => 2x=10 => x=5
4 2⁸ 2²ˣ⁻² 2⁸
( --- )ˣ⁻¹ = ------ => --------- = ------ => 2²ˣ⁻² = 2⁸ => 2x-2=8 => 2x=10 => x=5
4 2⁸ 2²ˣ⁻² 2⁸