取根号28.9=5.376,根号x=0.5376,求x=?

取根号28.9=5.376,根号x=0.5376,求x=?
取根号28.9=5.376,根号x=0.5376,求x=?

取根号28.9=5.376,根号x=0.5376,求x=?
0.5376=1/10*5.376
x^2=(1/10*5.376)^2=1/100*28.9=0.289

(10*x)2=28.9
100x2=28.9
x=取根号0.289

0.289