In question three why is it nbsp-2p nbsp- 1-2p nbsp- 2- - 2-2p nbsp- 1-p nbsp- 1-

In the second factor of the term (2p + 1)(2p + 2) i.e. (2p+2), 2 is common. So we can write nbsp;(2p+2)=2(p+1). That's why we write, nbsp;(2p + 1)(2p + 2) ...

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Standard X

Mathematics

Formula for Sum of n Terms of an AP

in question t...

Question

in question three why is it (2p + 1)(2p + 2) = 2(2p + 1)(p + 1)

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Solution

In the second factor of the term (2p + 1)(2p + 2) i.e. (2p+2), 2 is common. So we can write
(2p+2)=2(p+1). That's why we write, (2p + 1)(2p + 2) =2(2p + 1)(p + 1)

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in question three why is it (2p + 1)(2p + 2) = 2(2p + 1)(p + 1)

In the second factor of the term (2p + 1)(2p + 2) i.e. (2p+2), 2 is common. So we can write (2p+2)=2(p+1). That's why we write, (2p + 1)(2p + 2) =2(2p + 1)(p + 1)

In the second factor of the term (2p + 1)(2p + 2) i.e. (2p+2), 2 is common. So we can write
(2p+2)=2(p+1). That's why we write, (2p + 1)(2p + 2) =2(2p + 1)(p + 1)