Question 2 :
Simplify :<br>$({a}^{3} - 2{a}^{2} + 4a - 5) - (- {a}^{3} - 8a + 2{a}^{2} + 5)$
Question 3 :
Add $a-b + ab,\ b-c + bc, \ c- a + ac$<br/>
Question 6 :
<p>Add : $5m - 7n,$ <br> $3n - 4m + 2,$ <br> $2m - 3mn - 5$</p>
Question 8 :
Subtract: $3a (a + b + c ) -2(a b + c)$ from $4c( a + b + c )$<br>
Question 10 :
State whether true or false :<br>The coefficient of $y$ in $ -3xy $ is $ -3 $
Question 11 :
Solve: $\dfrac { 2 }{ 3 } \left( n+6 \right) -\dfrac { 1 }{ 5 } \left( n-4 \right) =\dfrac { 3 }{ 7 } \left( n+12 \right) $
Question 13 :
The value of the polynomial $x^2-x-1$ at $x= -1$ is :
Question 15 :
Add the following:<br/>$5x - 8y + 2z, 3z - 4y - 2x,6y - z - x$
Question 16 :
State true or false:A binomial can have at most two terms.<br/>
Question 18 :
Add $l^2 + m^2,\ m^2 + n^2,\ n^2 + l^2, \ 2lm + 2mn + 2nl$<br/>
Question 19 :
State True or False:<br/>On subtracting $ a-b-2c $ from $ 4a+6b-2c $, the answer is $3a+7b $.<br/>
Question 23 :
Write whether the following statements are True or False. Justify your answer<br>$\pi r^{2}$ is monomial
Question 24 :
In like terms, the numerical coefficients should also be the same
Question 27 :
Identify the terms & coefficients for the given expression.<br/>$1 + x + x^2$<br/>
Question 31 :
Find the product for $x=1, y=1$<br/>$(2x + 3y)(4x^{2} - 6xy + 9y^{2})$
Question 32 :
Identify and write the like terms in each of the following groups.<br>$7p , 8pq , -5pq , -2p , 3p$<br>
Question 33 :
The value of the polynomial $5x^{3} + 5x^{2} + 4x + 3$ when $x = -1$ is
Question 36 :
If one of the zeroes of the quadratic polynomial $(k -1) x^2 +kx +1 $ is $(-3)$, then k equals to.
Question 38 :
If $x^2+xy+x=12$ and $y^2+xy+y=18$, then the value of $x+y$ is __________?
Question 40 :
What must be subtracted from $3a^2-6ab-3b^2-1 $to get $4a^2-7ab -4b^2 + 1?$
Question 41 :
State whether the given statement is true or falseThe given expression is numerical expression $215x^2yz$ 
Question 43 :
$(5x^{2} + 6x - 3) + (2x^{2} - 7x - 9)$