Question

2x^2 +2 -x^3 - x^5
метод группировки

Answer 1

$2x^{2}+2- x^{3}- x^{5}=(2 x^{2} +2)-( x^{3}+ x^{5} ) = 2( x^{2} +1)- x^{3}( x^{2} +1)= \\ =( x^{2} +1)(2- x^{3} )$

Answer 2

= 2(X²+1) -x³(1+x²) = (2-x³)(x²+1)