2. Zapisz w postaci sumy algebraicznej.
a) (p + 4)(p - 2) =
b) (-3+ a)(a - 4) =
c) (2x + 5)(x + 3) =
d) (4m + 1)(2m-5) =
e) (5 - p)(4+3p) =​


2 Zapisz W Postaci Sumy Algebraicznej A P 4p 2 B 3 Aa 4 C 2x 5x 3 D 4m 12m5 E 5 P43p class=

Odpowiedź :

[tex]a) (p+4)(p-2)=p^{2}-2p+4p-8=p^{2}+2p-8[/tex]

[tex]b) (-3+a)(a-4)=-3a+12+a^{2}-4a = -7a+12+a^{2}[/tex]

[tex]c) (2x+5)(x+3)=2x^{2}+6x+5x+15 = 2x^{2}+11x+15[/tex]

[tex]d) (4m+1)(2m-5) = 8m^{2}-20m+2m-5=8m^{2}-18m-5[/tex]

[tex]e)(5-p)(4+3p)=20+15p-4p-3p^{2}= -3p^{2}+11p+20[/tex]

:)