dijawab ya gaes please,besok dikumpul nih

1. (4x- 7x + 5 + 3) =
Jawab= 4x + 7x - 5 - 3 =
=-11x - 2
2. (4x- 7x - 5 + 3) =
Jawab= 4x + 7x + 5 - 3=
= 11x + 2
3. (x-3) (2x + 3) =
Jawab= x × 3 = 3x
= x × 2 =2x
= 3 × 3 = 9
= 3 × 2 = 6
Jawab=3x + 2x × 9 - 6 =
= 5x² × 3

Maff ya saya cuman bisa jawab sampe no 3, maaf juga kalo salah

dan = ditambah
dari = dikali

1) = 4x-5 + 7x+3
    = 4x+7x-5+3
    = 11x-2

2) = (4x-5)(7x+3)
    = 4x (7x+3) - 5(7x+3)
    = 28x²+12x - (35x+15)
    = 28x²+12x-35x-15
    = 28x²-23x-15

3) sama cara
4) sama cara