Mathematics
Find the roots of the following quadratic equation by factorisation :
2x2 + x - 6 = 0
Quadratic Equations
3 Likes
Answer
Solving,
⇒ 2x2 + x - 6 = 0
⇒ 2x2 + 4x - 3x - 6 = 0
⇒ 2x(x + 2) - 3(x + 2) = 0
⇒ (2x - 3)(x + 2) = 0
⇒ 2x - 3 = 0 or x + 2 = 0
⇒ 2x = 3 or x = -2
⇒ x = or x = -2.
Hence, x = -2 or x = .
Answered By
1 Like
Related Questions
Represent the following situation in the form of quadratic equation :
A train travels a distance of 480 km at a uniform speed. If the speed had been 8 km/h less, then it would have taken 3 hours more to cover the same distance. We need to find the speed of the train.
Find the roots of the following quadratic equation by factorisation :
x2 - 3x - 10 = 0
Find the roots of the following quadratic equation by factorisation :
Find the roots of the following quadratic equations by factorisation :