Ответы на вопрос:
log5(4)+2log5(x) = 2
2log5(2)+2log5(x) = 2|:2
log5(2)+log5(x) = 1
log5(2x) = 1
2x = 5¹ = 5
x = 2.5
log⁵4 + 2log⁵x = 2
2log⁵2 + 2log⁵x = 2
2log⁵2x = 2
log⁵2x = 1
5¹ = 2x
x = 5/2 = 2.5
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