So using a(2)=0 we can first solve for k by substituting t for 2
0 = (2-k)(2-3)(2-6)(2+3)
0 = (2-k)(-1)(-4)(5)
0 = (2-k)20
0 = 40 - 20k
-40 = -20k
k = 2
The next step would be to find all the 0s of a.
0 = (t-2)(t-3)(t-6)(t+3)
T = 2,3,6,-3
Then we find the product
2x3x6x-3 = -108
Since the problem asks for the absolute value, the answer is positive 108
Answer:
9 birds
Explanation:
f is finches, h is herons, w is warblers, t is total
f+h+w=t
All but 6 means subtracted from the total
f=t-6
h=t-6
w=t-6
Adding the three equations gets 3t-18 and plug that back in and isolate
t=3t-18
t= 9
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