1.(5a+3) (3a+2) 2.(4x-3) (5x+7) 3.(3p-5) (3p-8) plis bantuin pake cara

1 (5ax3a)+(3x2)
15a²+6

1) (5a+3)(3a+2)=15a^2+10a+9a+6
= 15a^2 + 19a + 6
2) (4x-3)(5x+7)=20x^2+28x-15x-21
= 20x^2 + 13x - 21
3) (3p-5)(3p-8)=9p^2-24p-15p+40
= 9p^2 - 39p + 40