Find the zeros of the polynomial function.

f(x) = x2 + 12x + 20

A.
2, 10

B.
–4, –5

C.
–2, –10

D.
4, 5

Question

Find the zeros of the polynomial function.
 
 
        f(x) = x2 + 12x + 20
 
 
 A.
2, 10
 
 B.
–4, –5
 
 C.
–2, –10
 
 D.
4, 5

anonymous · Answer

C

anonymous · Answer

Find the zeros of the polynomial function.
 
        f(x) = x2 – 9x – 70 
 
 A.
–10, 3
 
 B.
–14, 5
 
 C.
–3, 10
 
 D.
–5, 14

anonymous · Answer

D

anonymous · Answer

Find the roots of the polynomial equation.
 
        x2 + 8x – 48 = 0
 
 
 A.
–6, 8
 
 B.
–4, 12
 
 C.
–12, 4
 
 D.
–8, 6

anonymous · Answer

all you have to do is factor them. Can you do it?

anonymous · Answer

no @ari97

anonymous · Answer

well think of two numbers that if you multiply will give you -48 but when you add you get 8

anonymous · Answer

12 and -4 give you -48 and if you add them you get 8

anonymous · Answer

so (x+12)(x-4) set them equal to zero and the answer is -12 and 4 - C