1(.3x-2)x(3x+2) 2.(4x-3)x(4x+3) 3.(5x-4)x(5x+4) tolong dijawab besok soalnya dikumpul

1. ( 3x-2 ) ( 3x+2)
= 9x²+6x−6x−5
= 9x²−5

2. (4x-3) (4x+3)
= 16x²+12x-12x-9
= 16x²-9

3. (5x-4) (5x+4)
= 25x²+20x-20x-16
= 25x²-16

1. (3x-2)x(3x2)
  : ((-6)x6) : -36

2.(4x-3)x(4x3)
  : ((-12x12) : 24

3. (5x-4)x(5x4)
  : ((-20x20) : -400
sorry kalo salah