Question

1. Simplify (x2 + 16)(x2 – 16) = ?

Answer 1

Answer:

x$x^{2}-256$

Step-by-step explanation:

$x^{2} (x^{2} -16) 16(x^{2} -16)$

distribute

then add like terms

Answer 2

(x²+16)(x²-16)
= x^4 - 16x² + 16x² - 256
= x^4 - 256