Question

determine a forma mais simples de escrever (x-1).(x-1)+3.(X-1).(x-1)+3.(x-1)+1
Me ajudem por favor

Answer 1

x²-x-x+1+3(x²-x-x+1)+3x-3+1
=x²-2x+1+3(x²-2x+1)+3x-2
=x²-2x+1+3x²-6x+3+3x-2
=4x²-8x+1+3+3x-2
=4x²-5x+2