Question

Tentukan nilai x (X-3)^2+6(X-3)+5=0

Answer 1

(x-3)^2 + 6(x-3) + 5=0
Mis: (x-3) = A
Maka
A^2 +6A + 5 =0
(A+5)(A+1)=0
Ganti A = x-3
(x-3+5)(x-3+1)=0
(x+2)(x-2)=0
x = 2,-2