Square root of x2 - 2 + 1/x2 =
x - 2
x + 1/x
x + 2
x - 1/x
The second order homogenous expression in x,y
ax2+ b xy + c y2
ax2 + b x
ax+by2
ax2+by
2x4y2
4x8y2
2x8y2
16x8y2
Square root of
If 5 is a root of the equation x2- (k-1) x+10 =0; then the value of k=
-5
7
6
8
If a x2 + b x + c is a perfect square, then
a2 = 4 bc
b2 = 4 ac
a = 4 c
b2 = 4 a
Frame an equation in x having 2 and -3 as roots.
x2+x+6=0
x2-x-6=0
x2-6=0
x2+x-6=0
Solution set of x(x-1) =0 is
{1, -1}
{-1}
{0,1}
{0,-1}
If √(x-1) = 4; then x =
16
15
17
-4
3 a2+4 b2
3 a2+4 b
3 a+4 b
3 a-4 b
