Punjab Board Solutions for Chapter: Algebraic Expressions, Exercise 2: EXERCISE 12.2

Subtract $-m^2+5mn$ from $4m^2-3mn+8$.

Subtract $-x^2+10x-5$ from $5x-10$.

Subtract $5a^2-7ab+5b^2$ from $3ab-2a^2-2b^2$.

Subtract $4pq-5q^2-3p^2$ from $5p^2+3q^2-pq$.

What should be added to $x^2+xy+y^2$ to obtain $2x^2+3xy$?

What should be subtracted from $2a+8b+10$ to get $-3a+7b+16$?

From the sum of $3x-y+11$ and $-y-11,$ subtract $3x-y-11$.

From the sum of $4+3x$ and $5-4x+2x^2,$ subtract the sum of $3x^2-5x$ and $-x^2+2x+5$.