Advertisements
Advertisements
प्रश्न
Solve the following equation by factorization
`3x - (8)/x `= 2
उत्तर
`3x - (8)/x `= 2
`(3x^2 - 8)/x` = 2
⇒ 3x2 - 8 = 2x
⇒ 3x2 - 2x - 8 = 0
⇒ 3x2 - 6x + 4x - 8 = 0
⇒ 3x(x - 2) + 4(x - 2) = 0
⇒ (x - 2)(3x + 4) = 0
Either x - 2 = 0,
then x = 2
or
3x + 4 = 0,
then 3x = -4
⇒ x = `(-4)/(3)`
Hence x = 2, `(-4)/(3)`.
APPEARS IN
संबंधित प्रश्न
The sum of a number and its reciprocal is 17/4. Find the number.
A passenger train takes 2 hours less for a journey of 300 km if its speed is increased by 5 km/hr from its usual speed. Find the usual speed of the train.
The product of Shikha's age five years ago and her age 8 years later is 30, her age at both times being given in years. Find her present age.
Solve the following quadratic equations by factorization:
`x^2 – (a + b) x + ab = 0`
If the equation ax2 + 2x + a = 0 has two distinct roots, if
Solve the following equation: `7"x" + 3/"x" = 35 3/5`
Write the number of zeroes in the end of a number whose prime factorization is 22 × 53 × 32 × 17.
If an integer is added to its square the sum is 90. Find the integer with the help of a quadratic equation.
Solve the following quadratic equation by factorisation:
(2x + 3) (3x - 7) = 0
Solve the following quadratic equation:
4x2 - 4ax + (a2 - b2) = 0 where a , b ∈ R.