Problem 24
If \(\alpha, \beta\), yare the rootis of \(x^{3}-3 x+2=0\), then the value of \(\alpha^{2}+\beta^{2}+y^{2}\) is .....
Problem 27
The three rootar of \(x^{3}=1\) are
Problem 29
If two roots of \(x^{3}-3 x^{2}+2=0\) are equal, then its roots are ......
Problem 32
If the roota of the equation \(x^{4}+2 x^{3}-a x^{2}-22 x+40=0\) are \(-5,-2,1\) and 4 , then \(a=\ldots\).
Problem 33
A root of \(x^{3}-3 x^{2}+2.5=0\) lies between \(1.1\) and \(1.2\).
Problem 34
The equation \(x^{6}-x^{5}-10 x+7=0\) has four imnginary ronts.
