cmflores3245
04.04.2020 •
Mathematics
Which polynomial has zeros of 2, 5, and -4?
•
A. (x + 2)(x + 5)(x - 4)
B. (2x - 4)(x + 5)(x + 4)
c. 6 - 2)(x - 5)(x - 4)
D. (2x - 4)(x - 5)(x + 4)
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Ответ:
Step-by-step explanation:
(a) p(2)=(2+2) (2+5) (2-4)
=4*7*-2
=-56
So this is not the polynomial
(b) p(2)=(4-4) (2+5) (2+5)
=0*7*7
0
p(5)=(10-4)(5+5)(5+4)
6*10*9
=540
So this is also not the polynomial
(c)p(2)=(6-2)(2-5)(2-4)
4*-3*-2
24
so this is also not the polynomial
(d)p(2)=(4-4)(2-3)(2+4)
=0
p(5)=(10-4)(5-5)(5+4)
=0
p(-4)=(-8-4)(-4-5)(-4+4)
=0
so this is the polynomial
Ответ:
there is no image
Step-by-step explanation: