unit 4-5

Question 1

sum of squares

Answer 1

THERE ARE NO SUM OF SQUARES

——> becomes prime

Question 2

reminders

Answer 2

** make sure to check signs!! (especially on difference and sum of cubes)

** consider all multiples of a number (especially with a coefficient infront of x^2)

Question 3

perfect squares from 1-20

Answer 3

1 = 1 121 = 11
4 = 2 144 = 12
9 = 3. 169 = 13
16 = 4. 196 = 14
25 = 5. 225 = 15
36 = 6. 256 = 16
49 = 7. 289 = 17
64 = 8. 324 = 18
81 = 9. 361 = 19
100 = 10. 400 = 20

Question 4

perfect cubes from 1-15

Answer 4

1 = 1. 1331 = 11
8 = 2. 1728 = 12
27 = 3. 2197 = 13
64 = 4. 2744 = 14
125 = 5. 3375 = 15
216 = 6
343 = 7
512 = 8
729 = 9
1000 = 10

Question 5

how to solve for 16 - x^4

Answer 5

(x^2 + 4) (2-x) (2+x)