1.- 2ab - 2a^2
2.- 2x^2*y + 2x*y^3
3.- ab - 3ab^2
4.- x^2 + 2x^3 - x^2 * y^2
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1.- 2ab - 2a^2
2.- 2x^2*y + 2x*y^3
3.- ab - 3ab^2
4.- x^2 + 2x^3 - x^2 * y^2
1) 2a( b-a ) =
2ab- 2a²
2) (a- 3ab)b=
ab-3ab²
3) 2xy( x+3y²)=
2x²y + 6xy³
4) x²( 1+2x-y²)=
x² + 2x³- x²y²
saludos