Question

1) (x+3) * (x-3)-(x+1)² =
2)(x-1)(x+4)-(x-2)(x+2)=
3)2(x+5)²-4(x+2)(x-2)+2x(x-3)=
4)(3x+1)²-(4x-5)²+(8x-5)(8x+5)-(7x-2)(7x+2)=
5)(x+2)²+(x-1)²-2(x+4)(x-4)=
6)(x²+x+1)²-x²(x+2)(x-2)=
7)(x²-x+2)²-2x(x+1)=
8)(x²+2x+3)²-2x(x-1)²=
9)2/√7+√5 + 3/√5+√2 - 2/√9+√7 =
10)4/√7-√3 -1/√3+√2 - 5/√7-√2 =
11) 36/4√3-3√2 - 2/4√2-3√3 -8/2√3-√2 =

URGENT !!

Answer 1

ultimele doua nu le-am făcut. Nu am avut loc