Question

Zredukuj do najprostszej postaci :
4 ( 3a+5)+3 (5a-2)=
2 (7p-3)-5 (3p-1)=
2x (3x-4)+x (5-2x)=
3u (2-4u)-5u (4+3)=
(4x-6y-8r):2=

Proszę o szybką odpowiedź :)

Answer 1

A) 4 (3a+5)+3 (5a-2) = 12a + 20 + 15a - 6 = 27a + 12
b) 2 ( 7p-3) -5 (3p-1) = 14p - 6 - 15p + 5 = -p - 1
c) 2x (3x-4)+x (5-2x) = 6x^2 - 8x + 5x - 2x^2 = 4x^2 - 3x  ( ^2 - do kwadratu :) )
d) 3u (2-4u)-5u (4+3) = 6u - 12u^2 - 20u - 15u = -12u^2 - 29u
e) (4x-6y-8r):2 = 2x - 3y - 4r