What is expand 6x^2-3e^{3y}cos(x)-(2y)/((y^2+2)^2) ?

The solution to expand 6x^2-3e^{3y}cos(x)-(2y)/((y^2+2)^2) is 6x^2-3e^{3y}cos(x)-(2y)/(y^4+4y^2+4)

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expand 6x^2-3e^{3y}cos(x)-(2y)/((y^2+2)^2)

expand

6 x^{2} - 3 e^{3 y} cos (x) - \frac{2 y}{( y ^{2} + 2 ) ^{2}}

6 x^{2} - 3 e^{3 y} cos (x) - \frac{2 y}{y ^{4} + 4 y ^{2} + 4}

Solution steps

6 x^{2} - 3 e^{3 y} cos (x) - \frac{2 y}{( y ^{2} + 2 ) ^{2}}

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

= 6 x^{2} - 3 e^{3 y} cos (x) - \frac{2 y}{y ^{4} + 4 y ^{2} + 4}

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

(cot (x) - 1) (3 cot (x) + 1)

(sec^{2} (3 x^{2} + 6 x^{7} - 4)) \cdot (6 x + 42 x^{6})

\frac{( n + 1 ) ^{2}}{3 ( 3 n + 2 ) ( 3 n + 1 )}

\frac{( s + 3 )}{( s + 2 ) ( s + 5 ) ( s + 7 )}

What is expand 6x^2-3e^{3y}cos(x)-(2y)/((y^2+2)^2) ?
The solution to expand 6x^2-3e^{3y}cos(x)-(2y)/((y^2+2)^2) is 6x^2-3e^{3y}cos(x)-(2y)/(y^4+4y^2+4)