Question

igual determine o valor de X na igualdade b) raiz de x X raiz de 40 = 8 raiz de 10

Answer 1

√x•(x•√40)=8√10
[√x•(x•√40)]^2=(8√10 )^2
x•(40x^2)=64•10
40x^3=640
x^3=640/40
x^3=16
x=3√16
x=3√(2•(2)^3)
x=2•(3√2)