Advertisements
Advertisements
प्रश्न
Solve `x^2 - 11/4 x + 15/8 = 0`
उत्तर
`x^2 - 11/4 x + 15/8 = 0`
`=> (8x^2 - 22x + 15)/8 = 0`
`=> 8x^2 - 22x + 15 = 0`
`=> 8x^2 - 12x - 10x + 15 = 0`
`=> 4x(2x - 3) - 5(2x - 3) = 0`
`=> (2x - 3)(4x - 5) = 0`
`=> 2x - 3 =0 or 4x - 5 = 0`
`=> x = 3/2 or x = 5/4`
APPEARS IN
संबंधित प्रश्न
Check whether the following is the quadratic equation:
(x – 3)(2x + 1) = x(x + 5)
Solve the equation 4x2 – 5x – 3 = 0 and give your answer correct to two decimal places
Solve: x4 – 2x² – 3 = 0.
If quadratic equation `x^2 – (m + 1) x + 6 = 0 `has one root as x = 3; find the value of m and the other root of the equation.
`4-11x=3x^2`
`3((3x-1)/(2x+3))-2((2x+3)/(3x-1))=5,x≠1/3,-3/2`
A plane left 40 minutes late due to bad weather and in order to reach its destination, 1600kms away in time, it had to incease its speed by 400km/ hr from its usual speed. Find the usual speed of the plane.
A shopkeeper buys a number of books for Rs 840. If he had bought 5 more books for the same amount, each book would have cost Rs 4 less. How many books did he buy?
Which of the following are quadratic equation:
`(x -(1)/x)^2` = 0.
Choose the correct answer from the given four options :
Which of the following is a quadratic equation?