Respuesta :

bilinardiiiii

Answer:

16 and -225

Step-by-step explanation:

2×2=4

then 4²=16

3×(-5)=-15

then-15²=-225

ruhaassefa

Answer:

OK (2x+2) (2x+2)

4x²+4x+4x+4

4x²+8x+4 then we have (3x-5)²

(3x-5) (3x-5)

9x²-5x-15x-25

9x²-20x-25

if we add the two answers

9x²-20x-25+4x²+4x+4x+4=

13x²-12x-21