Exercice \( N^{0} 13: \) Soit \( A=A=2+3 \sqrt{5} \) er \( B=2-3 \sqrt{5} \) 1. Calculer \( A^{2} ; B^{2} A \times B \) 2. Démontrer que \( C=\frac{A}{B}+\frac{1}{4} \) est un nombre rationnel

Use the point-slope form to write an equation of the line with the given slope and point. Then write the equation in slope-intercept form. slope 4 , passes through \( (4,6) \)

Find the \( x \) - and \( y \)-intercepts of the graph of the equation. Do not graph the line. \[ \begin{array}{l}7 x+5 y=35 \\ x \text {-intercept } \quad(x, y)=(\square) \\ y \text {-intercept } \quad(x, y)=(\square)\end{array} \]

Find the slope and the \( y \)-intercept of the line with the given equation. \[ 4 x+3 y=9 \] slope \( y \)-intercept \( (x, y)=(\square) \) Submit Answer

Factorise coumpletely. \( 21 a^{2}+28 a^{b} \)

A. Déterminer la forme canonique de chacun des polynômes suivants : 1. \( P(x)=3 x^{2}-6 x+9 \) 2. \( P(x)=-5 x^{2}+3 x+12 \) 3. \( P(x)=9 x^{2}-7 x \)