Question

Zapisz w postaci sumy algebraicznej daje 25pkt prosze o pomoc​

Answer 1

Odpowiedź:

A) (x+7)(y-2)=xy-2x+7y-14

B) (2a-3)(5-b)=10a-2ab-15+3b

C) (p-5)(t+3)=pt+3p-5t-15

D) (3s-2)(5s+1)=15s+3s-10s+2=8s+2

E) (6-2x)(3x+1)=18x+6-6x-2x=10x+6

F) (a+b)(2b-a)=2ab-a^2+2b^2-ab=ab-a^2+2b^2

G) (5x-3)(y-2)=5xy-10x-3y+6

H) (3p^2+t)(t^2-4p)=3p^2t^2-12p^3+t^3-4pt