Explicación paso a paso:
1. (2x+y) (2x-y)
(2x²)-y²
4x²-y²
2.(x²+3y) (x²-3y)
(x²)²-(3y)²
x4 -9y²
3.(2a+1) (1-2a)
1²-(2a)²
1 -4a
4.(1+3xy) (1-3xy)
1²-(3xy)²
1 -9x²9y²
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Verified answer
Explicación paso a paso:
1. (2x+y) (2x-y)
(2x²)-y²
4x²-y²
2.(x²+3y) (x²-3y)
(x²)²-(3y)²
x4 -9y²
3.(2a+1) (1-2a)
1²-(2a)²
1 -4a
4.(1+3xy) (1-3xy)
1²-(3xy)²
1 -9x²9y²