Пожалуйста помогите Запишите в виде многочлена степи.

1)

(1,3m+4n)=(1,3m) +2*1,3m4n+(4n)=1,69m^4+10,4mn+16n^6

2)

(2,5a+4b)=(2,5a)-2*2,5a*4b+(4b)=6,25a^4+20ab+16b

3)

(5/2p-0,5q)=(5/2p)-2*5/2p*0,5q-(0,5q)=25/4p-2,5pq-0,25q^6

4)

(2,4m-3/4t)=(2,4m)-2*2,4m*3/4t-(3/4t)=5,76m^6-3,6mt-9/16t

5)

(7/4+0,6b^4)=(7/4)+2*7/4*0,6b^4+(0,6b^4)=49/16+2,1b^4+0,36b^8

6)

(3/8a-2/3b^4)^2=(3/8a)-2*3/8*2/3ab^4+(2/3b^4)2=9/64a-1/2ab^4+4/9b^8