Evaluate what should happen when data forecasted from an exponential smoothing technique is detected to have a trend component.
1 answer:
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This factors into
, and is thus a perfect square trinomial.
A perfect square is a number system that can be expressed as the
square of a given number from the same system.
Trinomial is a perfect square if
A > 0
C > 0
B = ±2√A√C
1.
C < 0
2.
2√A√C = 2×2×5
= 20,
B = −10
3.
not a perfect square,
C < 0
4.
perfect square
A>0,
C>0,
2√A√C = 2×2×3
-B = 12
=
Thus, the polynomial is a perfect square trinomial.
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