Please help this is the last assignment for my class and i'm stuck!
Polynomial Identitie...
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Mathematics, 02.04.2020 22:59 shykim
Please help this is the last assignment for my class and i'm stuck!
Polynomial Identities
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 − y)2 = x2 − 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 − ab + b2) to calculate the sum of the cubes of your numbers without using a calculator.
I got 45 = 50 - 5 all i need is the formula/work shown
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