Solve for y
y=\left(x+2\right)^{2}+1
Solve for x (complex solution)
x=-\left(\sqrt{y-1}+2\right)
x=\sqrt{y-1}-2
Solve for x
x=-\left(\sqrt{y-1}+2\right)
x=\sqrt{y-1}-2\text{, }y\geq 1
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y-1=x^{2}+4x+4
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(x+2\right)^{2}.
y=x^{2}+4x+4+1
Add 1 to both sides.
y=x^{2}+4x+5
Add 4 and 1 to get 5.
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Matrix
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Limits
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