Question

Simplify:
(1) (x2 + 5) (x2-5) + 25​

Answer 1

Answer:

34

Step-by-step explanation:

1×7×2-5+25

=7×2-5+25

=14-5+25

=9+25

=34

Answer 2

Answer:

$x^{4}$

Step-by-step explanation:

(1)($x^{2}$ + 5)($x^{2}$ - 5) + 25

= ($x^{2}^{2}$ - $5^{2}$) + 25             [ (a+b)(a-b)=($a^{2}+b^{2}) ]$

= $x^{4}$ -25 + 25

= $x^{4}$