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Hi help me please I don't know how to do it "using the formula evaluate (87)^2" ​

Hi help me please I don't know how to do it "using the formula evaluate (87)^2" ​
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1 vote
Hi help me please I don't know how to do it "using the formula evaluate (87)^2" ​

Hi help me please I don't know how to do it "using the formula evaluate (87)^2&quot-example-1
User Shirish Coolkarni
by
7.8k points

1 Answer

3 votes

Answer:

7,569

Explanation:


(87)^(2) \\ = {(90 - 3)}^(2) \\ = {90}^(2) - 2 * 90 * 3 + {3}^(2) \\ = 8100 - 540 + 9 \\ = 8100 + 9 - 540 \\ = 8109 - 540 \\ = 7,569

User Badal
by
8.5k points
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