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Question

Simplify: (p2p34)(p2+p34).

A
p24p616
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B
p24+p616
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C
p24p64
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D
p24+p64
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Solution

The correct option is A p24p616
Using the FOIL rule.
F=First terms, O= Outside terms, I = Inside terms, L= Last terms.

(p2p34)(p2+p34)

=p2(p2+p34)p34(p2+p34)

=p24+p48p48p616

=p24p616 (p48p48=0)

This is the required expression obtained using FOIL rule.

Also we can use the identity,
(a+b)(ab)=a2b2.

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