doprowadź do najprostrzej postaci;
a) (x-2)²+ (2x-3)²=
b)(3y-1)-(2y-5)(2y+5)-3y²=
c)(5a-2)(5a+2)-(3a-1)²+4a²=
d)(4b+3)²-2(b-3)-(b-1)=
e)(5(x+2)²-3(x-3)²-(x+5)(x-5)=
f)(6(y-2)(y+2)+(3y-2)²-4(y-1)²=
g)2(2a+b)²-(2b+a)²+(a-2b)²
h)(4x-y)²+(2y-3x)²-(5x-y)(5x+y)=