i know how to do the majority of these type of questions, but i don't know how to simplify this one all the way..
8(2x-1)^3= 125
i know you could go
(2x-1)^3= 125/8
(2x-1)^3= (5/2)^3
but how can i simplify any further, and yes there is an answer.
2 answers
nevermind i got it now
8 is the cube of 2 and 125 is the cube of 5. Therefore
[2(2x-1)]^3 = 5^3
That means that 2(2x-1) = 5
Take it from there
[2(2x-1)]^3 = 5^3
That means that 2(2x-1) = 5
Take it from there
1 answer