Identify the terms and their factors in the following expressions. Show the terms
and factors by tree diagrams.
() 1 + x + x2
Answers
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0
Answer:
The quadratic formula is
−
b
±
√
b
2
−
4
a
c
2
a
this is used for formulas
a
x
2
+
b
x
+
c
=
0
in your problem,
x
2
−
x
−
1
=
0
a=1, b=-1, c=-1#
substitute into quadratic
−
(
−
1
)
±
√
(
−
1
)
2
−
4
(
1
)
(
−
1
)
2
⋅
1
this equals
1
±
√
1
+
4
2
1
+
√
5
2
or
1
−
√
5
2
x
=
1.62
or
x
=
−
0.6
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