Question

PRECISO DE AJUDA URGENTE !!!!!!!!!​

Answer 1

Resposta:

b) (x+3)(1-2x) + 3x(x-1)+13 =

x-2x''+3+6x + 3x''+3x +13

c) (a+3)'' - 5(a+1) + (a+2)(a-2) =

a''+6a+9 - 5a-5 + a''-2a+2a-4

d) x(2x-1)'' + 2x(2x-1) =

x(4x''-4x+1) + 4x''-2x=

4x'''-x