Answer:
Step-by-step explanation:
To factor the equation, break it into two binomials which multiply to make the equation. To write these binomials (x+a)(x+b), find factors which multiply to -28 and add to -3 for a and b.
28: 1,2,4,7,14,28
-7+4 = -3
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2 answers:
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Proof: and
are isosceles triangles.
Explanation: Given in D and E are angle bisector of
and
respectively.
Where G and H are points in AB such that and
.
Let us take two triangles and
(Right angles)
BE=BE, (common segment)
( Because BE is angle bisector)
Thus, (ASA)
Therefore, EH= CE (CPCT)
So, in , EH=CE ⇒
is an isosceles triangle.
Now, in and
,
(Right angles)
AD=AD (common segment)
( Because AD is angle bisector)
⇒ (ASA)
Thus, CD=DG (CPCT)
So, in , CD=DG ⇒
is an isosceles triangle.
