Question

Evaluate

(i) (x + 2) (x + 2) (x² + 4)

​

Answer 1

$\huge\tt\pink{ANSWER}$

$\mathbb\orange{EVALUTE}$

→ [( x - 2 ) ( x + 2 )] ( x² + 4 )

→ ( x² - 2² ) ( x² + 4 )

→ ( x² - 4 ) ( x² + 4 )

→( x² )² - (4)²

$\fbox\blue{x² - 16}$

Answer 2

☆ANSWER☆

→ [( x - 2 ) ( x + 2 )] ( x² + 4 )

→ ( x² - 2² ) ( x² + 4 )

→ ( x² - 4 ) ( x² + 4 )

→( x² )² - (4)²

=> x² - 16