Question

if (x-2)²=25 then what is the value of x​

Answer 1

Answer:

x^2-4x+4=25

x^2-4x+4-25.

x^2-4x-21.

x^2-7x+3x-21=0

X(x-7)+3(x-7)=0

(X+3)=0&(x-7)=0

X=-3&X=7