Math Help - Factorization

Factorize:
25- p^2 - q^2 - 2pq is
(a)(5+p+q)(5-p+q)
(b)(5+p+q)(5-p-q)
(c)(5+p+q)(5+p-q)
(d)(5+p-q)(5-p+q)

Hello,

Hints: (p+q)^2=? (p-q)^2=? (p+q)(p-q)=?

Warnig: Don' t forget the parentheses for grouping!

Bye.

Hello, devi!

Factorize: .

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We have: . a difference of squares!

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