Solve for y
y=7\left(x+1\right)^{2}+1
Solve for x (complex solution)
x=-\frac{\sqrt{7y-7}}{7}-1
x=\frac{\sqrt{7y-7}}{7}-1
Solve for x
x=-\frac{\sqrt{7y-7}}{7}-1
x=\frac{\sqrt{7y-7}}{7}-1\text{, }y\geq 1
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y=7\left(x^{2}+2x+1\right)+1
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(x+1\right)^{2}.
y=7x^{2}+14x+7+1
Use the distributive property to multiply 7 by x^{2}+2x+1.
y=7x^{2}+14x+8
Add 7 and 1 to get 8.
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