\( \begin{array}{ll}\text { (a) } \frac{x+2}{x-2}+\frac{x}{x+2}=\frac{1}{2} & \text { b) } \\ \text { 5. Të zgjidhen ekuacionet kuadratike sipas } x \text {-it ( } a \text { parame } \\ \text { a) }(x+a)(x-a)-2 a x=a(3 a-2 x) \text {; }\end{array} \)

The Minute hand of a clock is 8 inches long. How far does the tip of the minute hand move in 20 minutes? Accurate to two decimal places

Find all the second partial derivatives. \( w_{u u}=\sqrt{u^{7}+v^{9}} \) \( w_{u v}=0 u^{5} \) \( w_{v u}=0 \) \( w_{v v}=72 v^{7} \)

\( \left. \begin{array} { l } { 10 + 10 + 3 / 4 + 23 \times 4 } \\ { 3 \vee 4 ^ { 2 } / 3 = 1 + 45 = } \end{array} \right. \)

Solve the equation. Check your solutions. \[ \left|x^{2}+8 x\right|=5 x+40 \]

(d) \( x^{3 / 2}=8 \) \( x=\square \)