Use elementary row operations to find and set \( |A|:=\left\lvert\, \begin{array}{rrr}a+b & a+2 b & a \\ a & a+b & a+2 b \\ a+2 b & a & a+b\end{array}\right. \) Determine for which value (s) of \( a \) and \( b \) such that \( |A|=-3(a+b) \) The correct answer (s) is/are given by:

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

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. \( P(x)=9 x^{2}-7 x \)

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

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 \( (4,6) \)

(b) \( 27 x^{2}-3 y^{2} \)