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Mamont248 [21]
3 years ago
12

Find the square of ( b - 9 )

Mathematics
1 answer:
Kruka [31]3 years ago
6 0

Answer:

{b}^{2}  - 18b + 81

Step-by-step explanation:

{(b - 9)}^{2}  =  {b}^{2}  - 2 \times b \times 9 +  {(9)}^{2}  \\  =  {b}^{2}    - 18b + 81

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