Question Text
Question 2 :
Given that$a(a+b)=36$ and $b(a+b)=64$where a and b are positive, (a-b) equals :
Question 3 :
If $\left (x + \dfrac {1}{x}\right ) = 2\sqrt {3}$, then the value of $\left (x^{3} + \dfrac {1}{x^{3}}\right )$ is
Question 4 :
Find the value of $k$, if $x-1$ is a factor of $p(x)$ in the following cases:$p(x)=kx^2-\sqrt 2x+1$<br/>
