I need help with this problem, and I think it's a perfect square trinomial problem.

X^2+22+121-y^2

I know 11 is the square of 121.

1 answer

22x maybe?
what is the question anyway?
factor it?
put in an equal sign and solve it
find zeros of parabola ?
by the way

x^2 + 22 x + 121 = (x+11)^2

(x+11)^2 -y^2 = (x+11-y)(x+11+y)
because
a^2-b^2 = (a-b)(a+b)