evaluate the following using identities:
1. (2x + y)(2x - y)
2. (a^2b - b^2a)^2
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Answer:
1.
(2x)²-(y)²
=4x²-y²
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1)( 2x^2 -y^2)
2)a^4b^2+ b^4a^2-2a^3b^3
2)a^4b^2+ b^4a^2-2a^3b^3
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