factorise :- 4p4 + 9p4 + 12p2q2
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1. that's 9q4 not 9p4
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you mean factorise
4p^4 + 9q^4 + 12p^2q^2. (^ this sign is used to show power )
by identity ( a + b ) ^2= a^2 +2ab + b^2
then
=4p^4 + 9q^4 + 12p^2q^2
=(2p^2)^2 + (3q^2)^2 + 2×2p^2×3q^2
= (2p^2 +3q^2)^2
solved
4p^4 + 9q^4 + 12p^2q^2. (^ this sign is used to show power )
by identity ( a + b ) ^2= a^2 +2ab + b^2
then
=4p^4 + 9q^4 + 12p^2q^2
=(2p^2)^2 + (3q^2)^2 + 2×2p^2×3q^2
= (2p^2 +3q^2)^2
solved
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