Odpowiedź :
a)
[tex](5a^2+2a-3b)+(3a^2+7a+6b)=\\\\=5a^2+2a-3b+3a^2+7a+6b=\\\\=5a^2+3a^2+2a+7a-3b+6b=\boxed{8a^2+9a+3b}[/tex]
b)
[tex](2pq-5p+3q)+(6pq-2q)=\\\\=2pq-5p+3q+6pq-2q=\\\\=2pq+6pq-5p+3q-2q=\boxed{8pq-5p+q}[/tex]
c)
[tex](-x^2+3y)+(3y+3x^2-2xy)=\\\\=-x^2+3y+3y+3x^2-2xy=\\\\=-x^2+3x^2-2xy+3y+3y=\boxed{2x^2-2xy+6y}[/tex]
d)
[tex](-3b^2-2ab-4a)+(a-3b^2+2ab+2b)=\\\\=-3b^2-2ab-4a+a-3b^2+2ab+2b=\\\\=-3b^2-3b^2-2ab+2ab-4a+a+2b=\boxed{-6b^2-3a+2b}[/tex]
Odpowiedź:
[tex]a)\ \ (5a^2+2a-3b)+(3a^2+7a+6b)=5a^2+2a-3b+3a^2+7a+6b=8a^2+9a+3b\\\\b)\ \ (2pq-5p+3q)+(6pq-2q)=2pq-5p+3q+6pq-2q=8pq-5p+q\\\\c)\ \ (-x^2+3y)+(3y+3x^2-2xy)=-x^2+3y+3y+3x^2-2xy=2x^2+6y-2xy\\\\d)\ \ (-3b^2-2ab-4a)+(a-3b^2+2ab+2b)=-3b^2-2ab-4a+a-3b^2+2ab+2b=\\\\-6b^2-3a+2b[/tex]