I am drawing a blank on these problems :

(x+2)(x+1)=x^2 + 11

My first thoughts were to multiply what's left of the equal sign...

So I got:

x^2 + 3x + 3 = x^2 + 11

Next, I moved the x^2 to the right of the "=" to the left and it was eliminated.

Next, I moved the 3 to the right side and got - 3x = 8 and then x = 8/3

Is that correct?

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Next I have to solve by factoring:

(x+1)^2 - 4 = 0

My first instincts are to rewrite (x+1)^2 as (x+1) (x+1) and then multiply.

I got: x^2 + 2x - 2 = 0. Do I use the quadratic formula to solve? Thanks in advance!