Question

• Evaluate by using suitable identity.
(x-2) (x + 2) (x²+4)​

Answer 1

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

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

$=x^4-16$

Answer 2

Answer:

$\huge\rm{\fbox\pink{Solution}}$

1) (x - 2) (x + 2) (x² + 4)

= ( x⁴ - 4) ( x² + 4)

= x⁶ + 4x⁴ - 4x² - 16

So, the required answer is x⁶ + 4x⁴ - 4x² - 16