Doprowadź do najprostszej postaci.
a)(x-5)do kwadratu-3(x-1)(x+1)-(2xkwadrat-1)+x(2x-3)=
b)(x-2)(xkwadrat-3x-1)=
c)(4-3x+2xkwadrat)(2x-3)=
d)(2a-b)(3a+4b)-2(a+3b)(b-2a)=
e)-(4a-3b)(a-b)+3(a+2b)(b-3a)=
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