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

The solution to expand sqrt((x+bx)^2+4) is sqrt(x^2+2bx^2+b^2x^2+4)

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

expand

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

x^{2} + 2 b x^{2} + b^{2} x^{2} + 4

Solution steps

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

Expand

(x + b x)^{2} + 4 : x^{2} + 2 b x^{2} + b^{2} x^{2} + 4

= x^{2} + 2 b x^{2} + b^{2} x^{2} + 4

- 2 (z + i)^{4} - 4 (z + i)^{3}

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(y^{4} + 2 x y^{4} - x^{3}) d x + (4 x y^{3} + 16 x^{2} y^{3}) d y

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What is expand sqrt((x+bx)^2+4) ?
The solution to expand sqrt((x+bx)^2+4) is sqrt(x^2+2bx^2+b^2x^2+4)