\( 23.4 x^{2}+3 x-1=0 \) tonliyinin köklərinin kvadratları comini tapın. \( \begin{array}{lllll}\text { A) } \frac{7}{16} & \text { B) } \frac{9}{16} & \text { C) } \frac{13}{16} & \text { D) } \frac{17}{16} & \text { E) } \frac{19}{16}\end{array} \)

e) \( \frac{x+2}{3 x+0.1 x^{2}} \)

e) \( \frac{x+2}{3 x+0.1 x^{2}} \)

aben 4. Vereinfache den Term. \( \begin{array}{ll}\text { a) } \sqrt{c^{2}} & \text { c) }-(\sqrt{c})^{2} \\ \text { b) } \sqrt{(-c)^{2}} & \text { d) }(-\sqrt{c})^{2}\end{array} \)

Simplify. \[ \frac{3 b a^{5}}{b^{3} a^{4}} \]

12. (a) When the expression \( 2 p x^{2}-p^{2} x-14 \) is divided by \( x-3 \), the remainder is 10 . Calculate the values of \( p \). (b) Given that \( x^{3}+4 x^{2}-a x+b \) is exactly divisible by \( x+2 \) but leaves a remainder \( a^{3} \) when divided by \( x-a \), calculate the values of \( a \) and of \( b \). (c) Solve the equation \( 3 x^{3}-5 x-2=0 \), giving answers to two decimal places where necessary.