Odpowiedź :
Odpowiedź:
[tex]a)\\\\ (p+4)(p-2)=p^2-2p+4p-8=p^2+2p-8\\\\b)\\\\(-3+a)(a-4)=-3a+12+a^2-4a=a^2-7a+12\\\\c)\\\\(2x+5)(x+3)=2x^2+6a+5x+15=2x^2+11x+15\\\\d)\\\\(4m+1)(2m-5)=8m^2-20m+2m-5=8m^2-18m-5\\\\e)\\\\(5-p)(4+3p)=20+15p-4p-3p^2=-3p^2+11p+20[/tex]
Szczegółowe wyjaśnienie:
Odpowiedź:
a) (p+4)(p-2) = p*p-2p+4p-4*2 = p^2+2p-8
b) (-3+a)(a-4) = -3a+12+a^2-4a = a^2-7a+12
c) (2x+5)(x+3) = 2x^2+6x+5x+15 = 2x^2+11x+15
d) (4m+1)(2m-5) = 8m^2-20m+2m-5 = 8m^2-18m-5
e) (5-p)(4+3p) = 20+15p-4p-3p^2 = -3p^2+11p+20