f(x) is an algebraic expression in the variable x; and if f(b)=0 then which of the following is a factor of f(x).
x+b
x-b
b
-b
Square root of (x-2)2. (x+1)2. (2x+1)2=
(x-2) (x+1)(2x+1)
(x-2)2. (x+1)2.(2x+1)2
(x-2)4 (x+1)4(2x+1)4
(x-2) (2x+1)
Sum of roots of the equation 4x2-1=0 is
-1/4
0
1/4
4
If x+1/x= a; then x2+1/x2 =
a2-2
a2+2
a2
a2+1
First order homogeneous expression (x,y,z as variable) is
ax+bz
ay+az
ax+by+cz
a(xyz)
Solution set of x(x-1) =0 is
{1,-1}
{-1}
{0,1}
{0,-1}
If α and β are the roots of the equation ax2+bx+c=0, then the quadratic equation having 1/α , 1/β as roots is
bx2+ax+c=0
ax2-bx+c=0
cx2+bx+a=0
cx2-bx-a=0
a2+b3
a2- b3
a4+b3
a2+b6
If 5 is a root of the equation x2- (k-1)x+10=0; then then value of K=
-5
7
6
8
Product of the roots of the equation 2x2-3x=5 is
-3/2
3/2
5/2
-5/2
