Express y = 5 - 2x - 4x2 in the form y= A - B(x + C)2, where A, B and C are
constants. Hence state the maximum value of
the function f:x → 5 - 2x - 4x2.​

What is the solution to the system of the equations? x = y - 3 x + 3y = 13

What is the area of the triangle 10 13 12

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?