Question

tim x

(4x-2)^4=625

 

Answer 1

4X-2=5

4X=5+2

X=7:4

X=\(\frac{7}{4}\)

Answer 2

(4x-2)^4=5^4

=>4x-2=5

4x=7

x=7:4

x=1,75

vậy x= 1,75

Answer 3

( 4x  - 2 )⁴ = 625

( 4x -  2 )⁴ = 5⁴

\(\Rightarrow\)4x - 2 = 5

        4x = 5 + 2

        4x = 7

          x = 7 : 4

          x = 1,75 hoặc \(\frac{7}{4}\)

Answer 4

\(\left(4x-2\right)^4=625\)

\(\Rightarrow4x-2=\sqrt[4]{625}\)

\(4x-2=5\)

\(4x=5+2\)

\(4x=7\)

\(x=7:4\)

\(x=1,75\)

Answer 5

(4x-2)^4=625

Mà 5^4=625 => 4x-2=5

4x=5+2

4x=7

x=7:4

x=1,75