Use the following Polynomial Function to answer questions 3 to 5 . \( F(x)=4 x^{7}+3 x^{6}+4 x^{3}+3 \) Question 3 What is the degree of the polynomial function \( F(x) \) ?

\[ f(x)=a(x-b)(x-c) \] For the quadratic function \( f \) shown, \( a, b \) and \( c \) are constants. For the graph of \( y=f(x) \) in the \( x y \)-plane, the quadratic function opens upward, and the coordinates of its vertex are both negative. Which of the following could be true? (A) \( a<0, b<0, c>0 \) (B) \( a<0, b>0, c>0 \) (C) \( a>0, b<0, c<0 \) (D) \( a>0, b>0, c>0 \)

\( \left[\begin{array}{c}{(4^{2})^{5}\div 64^{3}+1}\end{array}\right]\times 5^{2}-(27^{3}\times 9^{2}\times 3^{3})\div 243^{3} \)

Dividi per 6 la differenza tra 28 e il di 2 . Sottrai a 15 il quoziente tra 20 e 4 . Somma a 2 il prodotto tra 8 e 4 .

4) \( 5 y^{2}+5 y=10 \)

\( R=\{x, y)=y \geq 2 x+1 \) and \( y \leq x-2\} \)