Question

3.(x+y)-9.(4x-1)+6(-4+9)

x^(2).(105x^(2)-63x-84)

(2m^(3)+n).(2m^(3)+n)

ajudem

Answer 1

$43) \\ 3x+3y-36x+9-6y+54 = -33x-3y+63 \\ \\ 44) \\ 105x^{2+2} - 63x^{1+2} -84x^2 = 105x^4 -63x^3 -84x^2 \\ \\ 45) \\ 2m^{3+3} + 2nm^3 + 2nm^3 + n^{1+1} = 2m^6 + 4nm^3 + n^2$