Solve {l}{x^2-y^2-x}{-y+2^2}{-2y^2}

$$\left. \begin{array} { l } { x ^ { 2 } - y ^ { 2 } - x } \\ { - y + 2 ^ { 2 } } \\ { - 2 y ^ { 2 } } \end{array} \right.$$

Evaluate

$$x^{2}-x-3y^{2}-y+4$$

Solution Steps

Calculate 2 to the power of 2 and get 4.

$$x^{2}-y^{2}-x-y+4-2y^{2}$$

Combine -y^{2} and -2y^{2} to get -3y^{2}.

$$x^{2}-3y^{2}-x-y+4$$

Differentiate w.r.t. x

$$2x-1$$