Question

Factorise (2x + 1/x)(4x² - 2 + 1/x²)

Answer 1

Answer:

Hi ,

x² + 1 / 4x² + 1 - 7x - 7 / 2x

=[ x² + ( 1/2x )² + 2 × x × ( 1 /2x ) ] -7 ( x + 1/2x )

= ( x + 1/2x )² - 7 ( x + 1/ 2x )

= ( x + 1/2x ) ( x + 1/2x - 7 )

I hope this helps you

Answer 2

Answer:

Hi ,

x² + 1 / 4x² + 1 - 7x - 7 / 2x

=[ x² + ( 1/2x )² + 2 × x × ( 1 /2x ) ] -7 ( x + 1/2x )

= ( x + 1/2x )² - 7 ( x + 1/ 2x )

= ( x + 1/2x ) ( x + 1/2x - 7 )

I hope this helps you.

:)