a, 3x*2+3xy-5x-5y b, 5x*2y-10xy*2 c, x*2-y*2+xz-yz d, (y+4y-5).(x+4) Thank mn nha

By Aaliyah

a, 3x*2+3xy-5x-5y
b, 5x*2y-10xy*2
c, x*2-y*2+xz-yz
d, (y+4y-5).(x+4)
Thank mn nha




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