Mathematics, 05.08.2021 23:40 TyleenValdez975
Part 1. Pick a two-digit number greater than 25. Rewrite your two-digit number as a difference of two numbers. Show how to use the identity (x β y)2 = x2 β 2xy + y2 to square your number without using a calculator. Part 2. Choose two values, a and b, each between 8 and 15. Show how to use the identity a3 + b3 = (a + b)(a2 β ab + b2) to calculate the sum of the cubes of your numbers without using a calculator.
Answers: 3
Mathematics, 21.06.2019 13:30
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Mathematics, 21.06.2019 19:30
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Mathematics, 21.06.2019 19:40
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Part 1. Pick a two-digit number greater than 25. Rewrite your two-digit number as a difference of tw...
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