Question

Find the volume of cuboid whose dimension are (X2-2) (2x+2)(x-1)

Answer 1

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HOLA! MATE

we know the volume of cuboid =>
=> ( L × B × H )

The sides are given :

( x²- 2),( 2x + 2 ) and ( X - 1 )

=> ( x²- 2) ( 2x + 2 ) ( X - 1 )

=> ( x²- 2) 2x( X - 1 ) +2( X - 1 )

=> ( x²- 2) ( 2x² - 2x + 2x - 2 )

=> ( x²- 2) ( 2x² - 2 )

=> x² ( 2x² - 2 ) -2 ( 2x² - 2 )

=> 2x⁴ - 2x² - 4x² + 4

=> 2x² ( x² - 1 ) - 4 ( x² - 1 )

=> ( 2x² - 4 ) ( x² - 1 )