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24 June, 07:58

What is the value of c so that y=x^2=9x+c is a perfect square trinomial

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  1. 24 June, 09:17
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    Y=x^2+9x+3

    C=3 because you need to square something to get 9. Which means it is 3. Also you would look at the equation as (x+3) ^2 which equals x^2+9x+3
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