Addition and Subtraction of Algebraic Expressions

Q. The degree of the polynomial obtained when $x^3-2x^2+23$ is subtracted from $-18x^2-2x+x^3-14$ is ________.

1. 3
2. 5
3. 2
4. 1

Q.

The sum of two binomials is $5x^2-6x$. If one of the binomial is $3x^2-2x$. Find the other.

1. $2x^2-4x$

2. $2x^2-8x$

3. $8x^2-4x$

4. $8x^2-8x$

Q.

$4abc+\frac{1}{3}abc+$ ___ +$\frac{2}{3}abc$=0

Q.

Multiply the terms $-3x^2{y}^2,-2xy,2x^{2}y$ and verify the product for $x=1$ and $y=2$

1. 

2. 

3. 

4. 

Q.

What must be added to$(x^3+3x-8)$ to get $(3x^3+x^2+6)$?

1. $2x^3+x^2-3x+17$

2. $2x^3+x^2-3x+14$

3. $2x^3+x^2-x+14$

4. $2x^3+4x^2-3x+14$

Q. Find the simplified value of ab + 2ab.

1. ab
2. 2ab
3. -ab
4. 3ab

Q.

If we subtract $-4x^{2}y$ from $2x^{2}y$ we get:

1. $-6x{y}^2$

2. $6x^{2}y$

3. $-6x^{2}y$

4. $6x^2{y}^2$

Q.

What has to be added to $x^2+3x-8$ to get $x^2+x+6$?

1. 2x + 14

2. 3 - 8

3. - 2x + 14

4. x + 6

Q.

What has to be added to $(a+b)$ to get $(3a+2b)$?

1. $4a+3b$

2. $-2a-b$

3. $2a+3b$

4. $2a+b$

Q. Subtract $7x-3x^2$ from $4x+8x^2$

1. 11x² − 5x

2. 11x²

3. 11x² − 3x

4. - 3x