4x^2-28x+49 write in product form
Answers
Answered by
1
Answer:
Step-by-step explanation:
Yes it is.
4
x
2
+
28
x
+
49
=
(
2
x
+
7
)
2
Explanation:
All perfect square trinomials are of the form:
a
2
±
2
a
b
+
b
2
=
(
a
±
b
)
2
In this case
a
=
2
x
and
b
=
7
...
4
x
2
+
28
x
+
49
=
(
2
x
)
2
+
(
2
⋅
(
2
x
)
⋅
7
)
+
7
2
=
(
2
x
+
7
)
2
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