=20b-6
=12b+15b²
=0,8y²+1,8
=-20y³+4,8y²
---------------------
=10a³+20a²-15a
=20a²-24a³+12a⁴
=5,6x-6,4x²+7,2x³
=-6x³+9,6x²-10,5x
=24x-30x²+30x²-18x-6x+18=18
=x-2(x-3x-12)+5=x-2x+6x+24+5=5x+29
-------------------------
=7(x-3)
=4(2x²-3x+3)
=x(13+17x)
=2x(3x²+4x-5)
-----------------------
=5(3-4х)+х(3-4х)=5+х(3-4х)
=х(7х-3)-13(7х-3)=(х-13)(7х-3)
-------------------------
=24х²-8х-10х+10+А=24х²-18х+10+А
24х²-18х+10+А=0
А=-24х²+18х-10