Odpowiedź :
1. =-3-x²+5-5x²-3*(1-x²)=-3-x²+5-5x²-3+3x²=-3x²-1
2.=4x²-4x+1-(4x²-1)-(4x²+4x+1)=4x²-4x+1-4x²+1-4x²-4x-1=-4x²-8x+1
-4x²-8x+1=-4*(√2)²-8*√2+1=-4*2-8√2+1=-7-8√2
2.=4x²-4x+1-(4x²-1)-(4x²+4x+1)=4x²-4x+1-4x²+1-4x²-4x-1=-4x²-8x+1
-4x²-8x+1=-4*(√2)²-8*√2+1=-4*2-8√2+1=-7-8√2