Advertisements
Advertisements
प्रश्न
Which of the following are quadratic equation in x?
(2x+3)(3x+2)=6(x-1)(x-2)
उत्तर
(2x+3)(3x+2)=6(x-1)(x-2)
⇒ ` 6x^2+4x+9x+6=6(x^2-3x+2)`
⇒ `6x^2+13x+6=6x^2-18x+12`
⇒31x-6=0
This is of the form `ax^2+bx+c=0`
Hence, the given equation is not a quadratic equation.
APPEARS IN
संबंधित प्रश्न
An express train takes 1 hour less than a passenger train to travel 132 km between Mysore and Bangalore. If the average speed of the express train is 1 1 km/hr more than that of the passenger train, form the quadratic equation to find the average speed of express train.
Without solving, comment upon the nature of roots of the following equations
6x2 – 13x +4 =0
Find the value of p for which the equation 3x2– 6x + k = 0 has distinct and real roots.
Determine whether x = -1 is a root of the equation x2 – 3x +2=0 or not.
Find the quadratic equation, whose solution set is:
{3, 5}
Solve the following equation using the formula:
`x^2 - 6 = 2sqrt(2)x`
`4x^2+4bx-(a^2-b^2)=0`
The sum of 2 numbers is 18. If the sum of their reciprocals is `1/4` , find the numbers.
Solve :
`2x - 3 = sqrt(2x^2 - 2x + 21)`
In each of the following find the values of k of which the given value is a solution of the given equation:
x2 + 3ax + k = 0; x = a.
