Question

Use expansion formula to find the value.
(99)^2

Answer 1

Answer:

(100-1)^2

(100)^2 + (-1)^2 -2 (100)(1)

10000 + 1 - 200

9801.

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Answer 2

Answer:

(100-1)^2

Step-by-step explanation:

(100)²+(-1)²-²(100)1

1000+1-200

9801