What is expand sqrt(x^2+(y+4)^2) ?

The solution to expand sqrt(x^2+(y+4)^2) is sqrt(x^2+y^2+8y+16)

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expand sqrt(x^2+(y+4)^2)

expand

x^{2} + (y + 4)^{2}

x^{2} + y^{2} + 8 y + 16

Solution steps

x^{2} + (y + 4)^{2}

Expand

x^{2} + (y + 4)^{2} : x^{2} + y^{2} + 8 y + 16

= x^{2} + y^{2} + 8 y + 16

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(\frac{10}{s ( s + 2 ) ( s + 4 )}) (\frac{1}{s})

- \frac{( 9 y ^{2} - 4 ) ( x z ^{^{'}} - z )}{( 2 z - 3 y x ) ^{2}}

\frac{x ( x ^{2} - 1 )}{x + 3}

What is expand sqrt(x^2+(y+4)^2) ?
The solution to expand sqrt(x^2+(y+4)^2) is sqrt(x^2+y^2+8y+16)