Question Number 100960 by john santu last updated on 29/Jun/20

 { (((√(x^2 −6x+9)) = 3−x)),(((√(x^2 +6x+9)) = x+3)) :}

Commented bybobhans last updated on 29/Jun/20

(√(x^2 −6x+9)) = ∣x−3∣ = 3−x → x ≤ 3  (√(x^2 +6x+9)) = ∣x+3∣ = x+3 → x ≥ −3   so −3 ≤ x ≤ 3