What is the completely factored form of p4 - 16?

see explanation

Step-by-step explanation:

Given

- 16 ← difference of 2 squares and factors in general as

a² - b² = (a - b)(a + b)

- 16

= (p² )² - 4²

= (p² - 4)(p² + 4) ← (p² - 4) is also a difference of squares

= (p - 2)(p + 2)(p² + 4)

what is the approximate angle of acb if abc is 25cm and the length of segment bc is 15

step-by-step explanation:

1. 8

2. 9

3. 20

4. 3

5. 17

6. 2.2

7. 11.25

8. 1

9. 14

10. 2

step-by-step explanation:

thats the first half