Use special product formulas to find each product. Write your answer on the space provided.
13. (1+7m) (1-7m)
14. (n-5) (n+5)
15. (4m-8) (4m+8)
16. (n-4)2
17.(x+2)³
18.(x+4y)²
19.(x+2)³
20.(b-4)³
21.(x+3y+5z)²
13. (1+7m) (1-7m)
14. (n-5) (n+5)
15. (4m-8) (4m+8)
16. (n-4)2
17.(x+2)³
18.(x+4y)²
19.(x+2)³
20.(b-4)³
21.(x+3y+5z)²
Answers & Comments
Answer:
[tex]13. \: 1 - 49 {m}^{2} [/tex]
[tex]14. \: {n}^{2} - \: 25[/tex]
[tex]15. \: 16 {m}^{2} - \: 64[/tex]
[tex]16. \: 2n - 8[/tex]
[tex]17. \: {x}^{2} + 6 {x}^{2} + 12x + 8[/tex]
[tex]18. \: {x}^{2} + \: 8xy + 16 {y}^{2} [/tex]
[tex]19. \: {x}^{2} + 6 {x}^{2} + 12x + 8[/tex]
[tex]20. \: {b}^{2} - 12 {b}^{2} + 48b - 64[/tex]
[tex]21. \: {x}^{2} + 6xy + 9 {y}^{2} + 10xz + 30yz + 25 {z}^{2} [/tex]