Advertisements
Advertisements
प्रश्न
Which of the following are the roots of` 3x^2+2x-1=0?`
-1
उत्तर
The given equation is `(3x^2+2x-1=0)`
x=(-1)
L.H.S`=x^2+2x-1`
`=3x(-1)^2+2x(-1)-1`
=3-2-1
=0
Thus, (-1) is root of `(3x^2+2x-1=0)`
shaalaa.com
Relationship Between Discriminant and Nature of Roots
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Write the discriminant of the following quadratic equations:
3x2 + 2x + k = 0
In the following, determine whether the given quadratic equation have real roots and if so, find the roots:
3x2 - 2x + 2 = 0
`(x-1)(2x-1)=0`
`2sqrt3x^2-5x+sqrt3=0`
`2x^2+ax-a^2=0`
`2x^2+5sqrt3x+6=0`
`x^2-2ax+(a^2-b^2)=0`
`x^2-4ax-b^2+4a^2=0`
Find the nature of roots of the following quadratic equations:
` 3x^2-2sqrt6x+2=0`
Solve for x: \[\frac{1}{x - 3} - \frac{1}{x + 5} = \frac{1}{6}, x \neq 3, - 5\]
