Question

X2xX2=130321

  X=?
 

Answer 1

x=19

vì X2xX2=X4

  \(\sqrt[4]{130321}\)=19

Answer 2

x2 . x2 = 130321

2x . 2x = 130321

 2x²          = 130321 = 361²

= > 2x = 361

        x = 361 : 2

        x = 180,5

Answer 3

x2 . x2 = 130321

x(2 . 2) = 130321

x4 = 130321

x = 130321 : 4

x = 32580,25

Answer 4

Giải:

x2 . x2 = 130321

2x . 2x = 130321

2x² = 130321

Mà 130321 = 361²

=> 2x = 361

=> x = 361 : 2

=> x = 180,5

Vậy x = 180,5