WHAT IS A QUADRATIC EQUATION ... HOW CAN I SOLVE IT .... PLEASE HELp.... GIVE RELEVANT FORMULAS .... I AM STUCK :'(

Question

anonymous · Answer

i didnt get it !! new to algebra ... how can u use alphabets in maths ???

anonymous · Answer

maths has something to do with numbers :'( .... help

parthkohli · Answer

The great Aristotle defined mathematics as "the science of quantity".

anonymous · Answer

^^ see .... can anyone explain the use of alphabets in maths ????

parthkohli · Answer

Letters are used to express unknown/unexpressed quantities.

lgbasallote · Answer

hmm..so you have solved various algebra questions (even ones on discriminants) and you're asking algebra? heh :)

anyway what do you need help on?

lalaly · Answer

@Mimi_x3  lol

anonymous · Answer

help me .....

parthkohli · Answer

Unknown quantities are mostly expressed by the letters in English letters. $x$ is an example.

anonymous · Answer

whats discriminant ..... it is an english language word ..

anonymous · Answer

right ??

parthkohli · Answer

$ax^2 + bx  + c = 0 \Longrightarrow D = b^2 - 4ac$

anonymous · Answer

@lalaly : exxplain please ///

anonymous · Answer

@Mimi_x3 : virus help :P

parthkohli · Answer

Inexpressible terms are through the Greek letters(most)
$\imath$ 

$\gamma$

$\pi$

unklerhaukus · Answer

$$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}=\frac{-b\pm\sqrt{\Delta}}{2a}$$
the discriminant is delta $$\Delta =b^2-4ac$$

anonymous · Answer

$$x=(-b \pm \sqrt{b^2-4ac})/2a$$

parthkohli · Answer

See there? $\Delta $ is another Greek letter.

mimi_x3 · Answer

lol, seeking for my help? :P

anonymous · Answer

whats delta ,,,, psi ,,,,, pie ..... i dont know :'( ... i am even confused in differentiation ....i dont know that |dw:1342177204073:dw|