write three perfect square trinomials. Then rewrite them as squared binomials.
1. \(x^2 + 6x + 9\)
Rewritten as squared binomial: \((x + 3)^2\)
2. \(4y^2 - 12y + 9\)
Rewritten as squared binomial: \((2y - 3)^2\)
3. \(9z^2 + 12z + 4\)
Rewritten as squared binomial: \((3z + 2)^2\)