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2 years ago

15

Which of the following is the complete list of roots for the polynomial function f(x)=(x2+6x+8)(x2+6x*13)

1 answer:

anygoal [31]2 years ago

3 0

Factorise x^2+6x+8=0 to get (x+4)(x+2)=0
Solve to get x=-4, x=-2
Factorise x^2+6x+13=0 (I assumed you mistyped and wrote * instead of +)
Use the quadratic formula and you find that there are no real roots so the answer for this is just x=-4, x=-2
Tell me if I made any mistakes

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