Solve for y
y=4\left(x+2\right)^{2}+3
Solve for x (complex solution)
x=-\frac{\sqrt{y-3}}{2}-2
x=\frac{\sqrt{y-3}}{2}-2
Solve for x
x=-\frac{\sqrt{y-3}}{2}-2
x=\frac{\sqrt{y-3}}{2}-2\text{, }y\geq 3
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y=4\left(x^{2}+4x+4\right)+3
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(x+2\right)^{2}.
y=4x^{2}+16x+16+3
Use the distributive property to multiply 4 by x^{2}+4x+4.
y=4x^{2}+16x+19
Add 16 and 3 to get 19.
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