Выражение 1. (3-5x)(x+11)-33 2 5a^2+(11+a)(3-5a) 3 (y^2+-3)(y+7) 4 (p+3c)c-(3c+p)(c-p)

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