KnowledgeBoat Logo
|

Mathematics

Find x, if :

logx 625 = -4

Logarithms

25 Likes

Answer

Given,

⇒ logx 625 = -4

⇒ x-4 = 625

⇒ 1x4\dfrac{1}{x^4} = 625

⇒ x4=1625x^4 = \dfrac{1}{625}

⇒ x4=(15)4x^4 = \Big(\dfrac{1}{5}\Big)^4

⇒ x = 15\dfrac{1}{5} = 0.2

Hence, x = 0.2

Answered By

11 Likes

Related Questions