Step-by-step explanation:
(4r)(7r)+4r(2)-5(7r)-5(2)=28r²+8r-35r-10=28r²-27r-10
3x(3x)+3x(7)-5(3x)-5(7)=9x²+21x-15x-35=9x²+6x-35
=3h(2h²)-3h(7h)+3h(1)+2(2h)-2(7h)+2(1)
=6h³-21h²+4h²+3h-14h+2
=6h³-17h²-11h+2
Answer:B c a
