Advertisements
Advertisements
प्रश्न
Solve the following quadratic equation using formula method only
6x2 + 7x - 10 = 0
Advertisements
उत्तर
6x2 + 7x - 10 = 0
a = 6 ; b = 7 ; c = -10
D = b2 - 4ac
= (7)2 - 4(6)(-10)
= 49 + 240
= 289
x = `(- "b" ± sqrt ("b"^2 - 4 "ac"))/(2a)`
x = `(-7 +- sqrt 289)/12`
APPEARS IN
संबंधित प्रश्न
Solve the following quadratic equations by factorization:
(2x + 3)(3x − 7) = 0
Solve the following quadratic equations by factorization:
x2 - x - a(a + 1) = 0
Find the two consecutive natural numbers whose product is 20.
If the sum of the roots of the equation \[x^2 - \left( k + 6 \right)x + 2\left( 2k - 1 \right) = 0\] is equal to half of their product, then k =
Two natural numbers differ by 4. If the sum of their square is 656, find the numbers.
Find two consecutive natural numbers whose squares have the sum 221.
A two digit number contains the bigger at ten’s place. The product of the digits is 27 and the difference between two digits is 6. Find the number.
Solve the following equation by factorisation :
`(6)/x - (2)/(x - 1) = (1)/(x - 2)`
Solve the following equation by factorisation :
`sqrt(3x^2 - 2x - 1) = 2x - 2`
If Zeba were younger by 5 years than what she really is, then the square of her age (in years) would have been 11 more than five times her actual age. What is her age now?
