UPSKILL MATH PLUS
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Learn moreSimplify using identities.
(i) \((3p + q)(3p + r) =\)
(ii) \((3p + q)(3p - q) =\)
(iii) \((5x - 3y)^2 - (5x + 3y)^2 =\)
Answer variants:
\(9p^2 + 3p(q + r) + qr\)
\(9p^2 + q^2\)
\(60xy\)
\(-60xy\)
\(9p^2 + 3q(p + r) + qr\)
\(9p^2 - q^2\)
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