177. Mukul has \( \$ 3.75 \) in quarters, dimes and nickels in his pocket. He has five more dimes than quarters and nine more nickels than quarters. How many of each coin are in his pocket?

Бүтэн квадрат ялгах замаар үржигдэхуүн болгон задал. \( \begin{array}{lll}\text { а) } x^{2}+8 x-33 & \text { д) } x^{2}+12 x-45 & \text { ж) } x^{2}+x-30 \\ \text { б) } x^{2}+12 x-64 & \text { е) } x^{2}+14 x+24 & \text { к) } x^{2}-7 x+12 \\ \text { в) } x^{2}-8 x-20 & \text { ё) } x^{2}-11 x+30 & \\ \text { г) } x^{2}-4 x-45 & \text { з) } x^{2}-11 x-60\end{array} \)

\[ f(x)=f(x+1)+3 \] \( f(1)=11 \) olduğuna göre, \( f(3) \) kaçtır? \( \begin{array}{llll}\text { A) } 17 & \text { B) } 13 & \text { C) } 11 & \text { D) } 7\end{array} \) (E) 5

\( 5 a^{3}+a-3 \) ва \( -2 a^{3}+4 a+5 \)

5. Бүтэн квадрат ялгах замаар үржигдэхуун болгон задал. \( \begin{array}{lll}\text { а) } a^{4}+a^{2}+1 & \text { д) } x^{4}+x^{2} y^{2}+y^{4} & \text { ж) } 4 a^{4}-12 a^{2}+1 \\ \text { б) } a^{8}+a^{4}+1 & \text { е) } x^{12} y^{12}+x^{6} & \text { к) } x^{4}+6 x^{2}-55 \\ \text { в) } a^{8}+4 a^{4}+4 & \text { ё) } y^{6} z^{2}+z^{4} & \text { л) }(x-a)^{4}+4 a^{4} \\ \text { г) } x^{4}+4 y^{4} & \text { з) } x^{4}-8 x^{2}+4 & \text { м) } a^{2 n}-a^{4 n}-2 a^{7 n}-a^{10 n}\end{array} \)

4) Discutere e risolvere il seguente sistema lineare al variare del parametro \( k \in \mathbb{R} \) : \[ \begin{array}{l}k x+y+z=1 \\ x+k y+z=1 \\ x+y+k z=1\end{array} \]