3. Draw the following tools a) Pliers b) Hacksaw c) Nails d) Screw driver e) Chisel f) Hammer 4. State the function of tools above 5. Give the causes of the following injuries workshop a) Bruises b) Electric shock c) Burn d) Amputation

\( \begin{array}{cc} & \text { Apı } \\ \text { A) } & \text { Aué ex } \\ & \text { B) } \\ & \text { C) } \\ & \text { D) }\end{array} \)

b) \( 10 x^{4}+6 x^{3}-37 x^{2}+36 x-12 \) entre \( 5 x^{2}-7 x+3 \) c) \( 8 x^{4}+6 x^{3}-23 x^{2}+2 x-3 \) entre \( 4 x^{2}-3 x+1 \)

\( 6 ; 5+x ;-6 \) and \( 6 x \) are the first four terms of a quadratic sequence.

To solve the rational equation \( \frac{5}{x-1}+\frac{3}{4}=\frac{1}{x} \), how can the expression \( \frac{5}{x-1} \) be rewritten using the least common denominater? a.) \( \frac{5 x}{x(x-1)} \) b.) \( \frac{8}{(x-1)} \) c.) \( \frac{20 x}{4 x(x-1)} \) d.) \( \frac{20}{4(x-1)} \)

Sai che \( \frac{2}{x}-x=5 \). Calcola \( \frac{4}{x^{2}}+x^{2} \)