Question

Factorise:-
(x²+6x)²-8(x²+6x+16) ​

Answer 1

( x ² + 6x ) ² - 8 ( x² + 6x + 16 )

solution

( x ² ) + 12x² x + 36x² - 8 ( x² + 6x + 16 )

x ⁴ + 12x²x + 36x² - 8 ( x² + 6x + 16 )

x ⁴ + 12x³ + 36x² -8 ( x ² + 6x + 16 )

x ⁴ + 12x³ + 36x² - 8x² - 48x - 128

x⁴ + 12x ³ + 28x² - 48x - 128