Advertisements
Advertisements
प्रश्न
Find the value of the discriminant in the following quadratic equation:
x2 +2x-2=0
उत्तर
x2 +2x-2=0
Discriminant = b2 - 4ac
= (2)2 - 4(1)(-2)
= 4 + 8
= 12
APPEARS IN
संबंधित प्रश्न
Find the values of k for which the quadratic equation 9x2 - 3kx + k = 0 has equal roots.
Find the values of k for which the given quadratic equation has real and distinct roots:
x2 - kx + 9 = 0
`sqrt(3)x^2 + 10x + 7sqrt(3)` = 0
Discuss the nature of the roots of the following quadratic equations : `3x^2 - 2x + (1)/(3)` = 0
Find the value(s) of m for which each of the following quadratic equation has real and equal roots: (3m + 1)x2 + 2(m + 1)x + m = 0
Find the least positive value of k for which the equation x2 + kx + 4 = 0 has real roots.
The quadratic equation whose one rational root is `3 + sqrt2` is
Does there exist a quadratic equation whose coefficients are rational but both of its roots are irrational? Justify your answer.
The nature of roots of the quadratic equation 9x2 – 6x – 2 = 0 is ______.
If the quadratic equation kx2 + kx + 1 = 0 has real and distinct roots, the value of k is ______.
