pls solve it....it's very urgent and don't spam please solve
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Answer:
This appears to be a way of finding a number
a
, which when added to
x
2
−
16
x
results in a square of form
(
x
+
b
)
2
We can write
x
2
−
16
x
+
a
=
(
x
+
b
)
2
as
x
2
−
16
x
+
a
=
x
2
+
2
b
x
+
b
2
Now comparing coefficients of similar terms
2
b
=
−
16
or
b
=
−
8
and
a
=
b
2
=
(
−
8
)
2
=
64
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