please help me......
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You need the relation between coefficients and zeros.
It's such a long name, but don't forget it.
The Relation
Sum and multiplication of zeros of
quadratic equation ax²+bx+c=0 is
- Sum : -b/a
- Multiplication : c/a
Proof
It is proved by the quadratic formula, .
By getting the sum and the multiplication.
Now you can do it!
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