2x4y2
4x8y2
2x8y2
16x8y2
Nature of the roots of the equation 4x2-4x+1=0 is
Real and equal
Irrational
Complex
Real and unequal
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)
If ax2+ bx+c is a perfect square, then
a2= 4bc
b2= 4ac
a=4c
b2= 4a
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 x2- 2 + 1/x2 =
x - 2
x + 1/x
x + 2
x - 1/x
Sum of roots of the equation 4x2-1=0 is
-1/4
0
1/4
4
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
4x2- 9= 0; solution set of the given equation is
{9/4}
{3/2}
{±3/2}
{0}
Square root of a/b + b/a - 2 =
√a - √b
√a + √b
