We have three methods to solve a quadratic equation. Among these three, which method would you like to use? Why?
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Answered by
5
I really like factorization method to solve quadratic equation.
why I like it ? Just see one example to better understand.
a quadratic equation is x² + 45x + 200 = 0
if we apply formula,
then, x = { -45 ± √(45² - 4 × 200)}/2
it seems difficult calculation to find the solutions .
now , if we apply factorization ,
we get, it just a minute .
x² + 45x + 200 = 0
x² + 40x + 5x + 200 = 0
x(x + 40) + 5(x + 40) = 0
(x + 40)(x + 5) = 0
x = -5 , -40
here you can see how easily we can get the solutions without getting complications. so, I prefer factorization method.
why I like it ? Just see one example to better understand.
a quadratic equation is x² + 45x + 200 = 0
if we apply formula,
then, x = { -45 ± √(45² - 4 × 200)}/2
it seems difficult calculation to find the solutions .
now , if we apply factorization ,
we get, it just a minute .
x² + 45x + 200 = 0
x² + 40x + 5x + 200 = 0
x(x + 40) + 5(x + 40) = 0
(x + 40)(x + 5) = 0
x = -5 , -40
here you can see how easily we can get the solutions without getting complications. so, I prefer factorization method.
Answered by
6
There are 3 methods to solve a quadratic equation. They are 1. Factorization method 2. Formula method 3. Square completion method.............. We can use quadratic formula to solve any type quadratic equation................... ........................................................................ Factorization method is applicable only when the coefficient of x is equal to the sum of the divisors of the constant term... ............................................................................ In Square completion method , we have to do more calculations than any other methods.
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