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larisa86 [58]
3 years ago
15

(X+2)(x+1)(x-2)(x-5)

Mathematics
2 answers:
yarga [219]3 years ago
8 0
= x^4 − 4x^3 − 9x^2 + 16x + 20
Xelga [282]3 years ago
6 0
Further can be simplified as,

1x^4-4x^3-9x^2+16x+20

_____________________

By exponential rule,

-12x^4+3+2+16x+20


Final equation >-12x^9+16x+20.
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<h3>Answer:</h3>
  1. DE is not included, AAS
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An angle is identifiede by its vertex. A side is identified by the vertices it lies between. When the vertices are X and Y, the side that lies between (is included) is side XY.

1. The angle vertices are E and F, so the side included between them would be side EF. The named side, DE, is <em>not</em> included.

The postulate naming is pretty straightforward. Each A represents an angle, and each S represents a side. The sequence of letters matches the sequence of the parts of the geometry. Thus AAS refers to a pair of angles with the side being not between them, while ASA refers to a pair of angles with the side between.

When you have two angles and a not-included side, the postulate you must invoke is the AAS postulate.

2. The explanation of 1 pretty much covers it. Side DF is (included) between angles D and F, so the ASA postulate applies.

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