jocmarti jocmarti

04-03-2022
Mathematics

contestada

which equation has roots of 13 and -3

a[x2-10x-39=0
b{x2+10x-39=0
c{x2-16x-39=0
d{x2+16x--39=0

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repthebae repthebae

04-03-2022

To get roots of 13 and -3 the simplified equation will have to look like this.
(X-13)(X+3)=0
So if we multiply this out with foil method we get this:

X^2 -10X -39

So the answer is A

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