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nlexa [21]
3 years ago
13

Pick a two-digit number greater than 25. Rewrite your two-digit number as a difference of two numbers. Show how to use the ident

ity (x − y)2 = x2 − 2xy + y2 to square your number without using a calculator.
Mathematics
1 answer:
ahrayia [7]3 years ago
5 0

Answer:

Step-by-step explanation:

X = 26 ; y = 27

(x − y)2 = x² − 2xy + y²

(26 - 27)² = 26² - 2(26)(27) + 27²

(-1)² = 676 - 1404 + 729

1 = 1405 - 1404

1 = 1

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