(x-7)ˆ3/2-12(x-7)+48√x-7-64=0

Question

(x-7)ˆ3/2-12(x-7)+48√x-7-64=0

Answer 1

X-7=a
(a√a12a+48√a-64)=0
(√a-4)³=0
√a=4
a=16
x-7=16
x=23

Comments

спас ибо)))