CHAPTER-4 QUADRATIC EQUATIONS (SET-1)

Questions in this test

1. If the equation $x^2+4x+k=0$ has real and distinct roots, then
2. If the equations $x^2-ax+1=0$ has 2 distinct roots, then
3. If the equation $9x^2+6kx+4=0$ has equal roots, then the roots are both equal to
4. If ax2+bx+c=0 has equal roots, then c=?
5. If the equation $ax^2+2x+a=0$ has two distinct roots, if
6. The value of k for which the equation $x^2+4x+6y=0$ and $x^2-8x+k=0$ will both have real roots, is
7. The value of $\sqrt{6+\sqrt{6}+\sqrt{6}+.....}is$
8. If 2 is a root of equation $x^2+bx+12=0$ and equation $x^2+bx+q=0$ has equal roots, then q=
9. If the equation $(a^2+b^2)x^2-2(ac+bd)x+c^2+d^2= 0$ has equal roots, then
10. If the roots of equation $(a^2+b^2)x2-2b(a+c)x+(b^2+c^2)= 0$ are equal, then: