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Mathematics
Problem
The revenue (in rupees) from selling a pen at a price of Rs
p
p
p
is
R
(
p
)
=
−
2
p
2
+
14
p
R(p)=-2p^{2}+14p
R
(
p
)
=
−
2
p
2
+
14
p
. Which one of the following is the correct factorised form of
R
(
p
)
R(p)
R
(
p
)
? a)
−
2
p
(
p
+
7
)
-2p(p+7)
−
2
p
(
p
+
7
)
b)
−
2
p
(
p
−
7
)
-2p(p-7)
−
2
p
(
p
−
7
)
c)
2
p
(
p
−
7
)
2p(p-7)
2
p
(
p
−
7
)
d)
−
2
(
p
2
−
7
p
)
-2(p^{2}-7p)
−
2
(
p
2
−
7
p
)
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