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Home Q & A Board Science-Related Homework Help Mathematics
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toms13 toms13
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11 years ago
- Says I have to solve the equation by using the Principle of Zero Products, and if the equation can't be solved by factoring, I should say so.

1. 4x²-x- 42 =0


2. 2y²-4y-48 =0


3. 3x²-4x-7 =0


4. 9x²-25 =0


Thank you in advance Slight Smile.
Yes, I need an example to know how to factor them. I just don't know how to factor with a co-efficient in front of the "x²".
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Replies
wrote...
#1
11 years ago
i think u have to use the quadratic equation since the numbers are in y=aX^2+bX+c
the quadratic formula=

X=-b+/-square root of b square- 4ac over(divided) by 2a
 
or u could factor them
Answer accepted by topic starter
tomsawyertomsawyer
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#2
Posts: 74
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11 years ago
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