Question

Giúp mk vs mk cần gấp

X².(x²+4)-X² - 4

Thanks mn 

Answer 1

đề là gì? 

mk cần gấp

Answer 2

x².( x² + 4 ) - x² - 4

= x².( x² + 4 ) - ( x²  + 4 )

= ( x² + 4 ).( x² - 1 )

= ( x² + 4 ) .( x - 1 ).( x + 1 )

Answer 3

TL:

\(x^2\left(x^2+4\right)-x^2-4\) 

\(=x^2\left(x^2+4\right)-\left(x^2+4\right)\) 

\(=\left(x^2-1\right)\left(x^2+4\right)\)

Answer 4

\(x^2\left(x^2+4\right)-x^2-4\)

=\(x^2\left(x^2+4\right)-\left(x^2+4\right)\)

=\(\left(x^2-1\right)\left(x^2+4\right)\)