Toán Lớp 8: Giúp mình với mình sẽ cho 5 votes
x^3+2x^2+2x+1
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Toán Lớp 8: Giúp mình với mình sẽ cho 5 votes
x^3+2x^2+2x+1
Comments ( 2 )
$=(x^3+x^2)+(x^2+x)+(x+1)^{}$
$=x^2(x+1)+x(x+1)+(x+1)^{}$
$=(x+1)(x^2+x+1)^{}$