30 Développer et réduire les expressions suivantes A = (x + 3)(x + 2)
B = (x + 3)(2x + 4)
C= (x - 7)(x + 9)
D = (x - 3)(4 - x)
E = (3x + 4)(5x – 7) F=(-2x + 8)(4 - x)

Factor completely. 4p^2 + 36p + 81 express the answer in the form (ap + b)^2

Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?

When y’all answer can y’all explain too !