1) ...= 3х+33-5х^2-55х-33=-5х^2-52х
2) ...=5a^2+33+3a-55a-5a^2=33-52a
3) ...=y^2+4y-y^2-7y+3y+21=21
4) =cp+3c^2-3c^2+3cp-cp+p^2=3cp+p^2
1)3x+33-5x2-55x-33=-52x-5x2
2)5a^2+33-55a+3a-15a=5a^2+33-67a
3)y2+4y-y2-7y+3y+21=21
4)pc+3c2-3c2-3cp-pc+p2=p2-3pc
1) ...= 3х+33-5х^2-55х-33=-5х^2-52х
2) ...=5a^2+33+3a-55a-5a^2=33-52a
3) ...=y^2+4y-y^2-7y+3y+21=21
4) =cp+3c^2-3c^2+3cp-cp+p^2=3cp+p^2
1)3x+33-5x2-55x-33=-52x-5x2
2)5a^2+33-55a+3a-15a=5a^2+33-67a
3)y2+4y-y2-7y+3y+21=21
4)pc+3c2-3c2-3cp-pc+p2=p2-3pc