Question

(x-2)(x+1)
(a+3)(a-2)
2a-3)(a+3)
me ayudan plis:(

Answer 1

Espero que te sirva =)       

Answer 2

$Aplicas \ propiedad \ distributiva \\ \\ (x-2)(x+1)=x*x+x*1-2*x-2*1 \\ \\ (x-2)(x+1)=x^2+x-2x-2 \\ \\ \boxed{(x-2)(x+1)=x^2-x-2} \\ \\ \\ (a+3)(a-2)=a*a-a*2+3*a-3*2\\ \\ (a+3)(a-2)=a^2-2a+3a-6 \\ \\ \boxed{(a+3)(a-2)=a^2+a-6 } \\ \\ \\ (2a-3)(a+3)=2a*a+2a*3-3*a-3*3 \\ \\ (2a-3)(a+3)=2a^2+6a-3a-9 \\ \\ \boxed{(a+3)=2a^2+3a-9 }$

Espero que te sirva, salu2!!!!