Subtraction of Unlike Terms

Q.

Add : $p(p-q),q(q-r)andr(r-p)$

Q.

Question 60

In the following question, state whether the statement is True (T) or False (F):

​​​​​​​$(a-b{)}^2=a^2-b^2$

Q.

$-x^3-4x^2+9x-3$ must be subtracted from $x^3-3x^2+5x-1$ to get $2x^3+x^2-4x+2$ . State true or false.

1. 

2. 

Q.

What must be subtracted from $x^3-3x^2+5x-1$ to get $x^3+2x^2-2x+11$ ?

1. 

2. 

3. 

4. 

Q. Find the area of the rectangle whose sides are:
$2km$ and $3km$.

Q. Simplify: 3n-[-n+{2m+(4n-m)}]

1. -n
2. m
3. -m
4. n

Q.

Subtracting $4m+2n-3p$ from $5m+3n-3p$ gives

1. $-m-n$

2. $-m-n-p$

3. $m+n$

4. $m+n+p$

Q. How many centimetres make a kilometre?

Q.

Find the third side of a triangle whose perimeter is $8m^2-9m+4$ and two of its sides are $3m^2-5m$ and $4m^2+12$.

1. $m^2-4m-8$

2. $m^2-4m+8$

3. $m^2+4m+8$

4. $m^2+4m-8$

Q.

3a+3b+3c-2a-b-2c equals

1. a+b+c

2. 2a+b+c

3. a+2b+c

4. a+b+2c

Q.

$3x^3-5x^2+2x+1,3x-2x^2-x^3,2x^2-7x+9$