Math, asked by shadowsabers03, 1 year ago

$$I'm saying that, the equation to find the roots of a quadratic equation$ \\ ax^2 + bx + c = 0\ \ $is,$ \\ \\ x = \frac{b \pm \sqrt{b^2 - 4ac}}{-2a} \\ \\ $Everyone will agree my opinion too. Why?!

Answers

Answered by Anonymous
22

Answer:

\blue{\textsf{\boxed{NOPE}}}

Step-by-step explanation:

I do not know what everyone will do .

I will not agree to the formula .

The correct formula is given by :

\boxed{x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}}

Sum of roots is given by - b / a

Product of them is given by c / a

Generally if the equation is of the form :

ax² + bx + c = 0

It is called quadratic equation .

This equation has great uses even in our real lives.


shadowsabers03: Dear Jishnu, I took the negative sign from the numerator and gave it to denominator, like writing -2/3 as 2/-3, and made a new equation to find the roots as given in the question. So the equation which I'd given in the question is not incorrect. We can find the roots through the formula. Have a try by it if you've any doubt!!! Thanks!!!
shadowsabers03: I mean, from -b +/- (root (b^2-4ac)) / 2a, let me take the numerator and write the following: -b +/- (root (b^2-4ac)) = - (b -/+ root (b^2 - 4ac)). To here, I'm multiplying -1, and it becomes b +/- (root (b^2 - 4ac)). Then let me take the denominator 2a, and also multiply it by -1, then we get -2a. So I formed a new equation.
shadowsabers03: In short, I multiplied -1 to both numerator and denominator of the quadratic formula, and I made a new quadratic formula!!! That's all!!!
shadowsabers03: This concept is also found by me!!!
Anonymous: Oh yes it is still correct . Actually while I was writing the answer I did not notice the negative sign at the denominator , otherwise I would have written the answer that the equation is correct . It was my mistake of not noticing sorry . Great idea anyways !
shadowsabers03: It's okay. Thanking you. Can't you edit your answer?
Anonymous: yes i can but I will edit later as I am super busy for boards !
shadowsabers03: Okay. But sometimes the option to edit will be disappeared, won't it?
Anonymous: yes it has waved good bye and have disappeared already ... !
shadowsabers03: So you should edit it immediately.
Answered by generalRd
9

hi

here is your answer

YOUR QUESTION IS QUITE WRONG FRIEND

CORRECT ANSWER IN THE ATTACHMENT

HOPE IT HELPS

BE BRAINLY

Attachments:

shadowsabers03: Brother, please try to find the roots of any quadratic equation as an example by my method which is asked in my question, and check whether they can be found or not. They can be, because, as -2/3 = 2/-3, the familiar quadratic formula is always equal to my equation.
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