1.

How to construct a quadratic equation whose answer is already given. Explain the thinking process of making the 'Question' and 'Equation'.​

Answer»

Answer:

Step-by-step explanation:Ok so,

First,you have to make the equation itself,rather than the question.

You can do this by,

First subtracting 2 from given answer,then multiplying the given answer by 2.

Now put these values as in

X^2-(first VALUE{ans.-2})X-(2nd value{ans.×2})

So,for example,if you have to get answer 20,

The eqn. Is X^2-18X-40.

Then TAKE last term to R.H.S.

So,in this case,

X^2-18X=40

i.e.,X(X-18)=40

So,the 2 CONDITIONS are,

1)one factor(ex.you) is younger by 18 years than other factor(ex.your friend)

2)PRODUCT of you ages is 40

Hope this helps.

Plz ask me again if you have some doubt


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