Week 1: Student Response to Discussion
Cindi GallegosJun 6, 2017Jun 6 at 6:46pm
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Here are the equations based on my birthday: 6/20/77.
(a x a x a) - (b x b x b)
(6x6x6) – (-20 x -20 x -20x)
(216) – (-8000)
216 + 8000 = 8216
I changed the variables a, b, and c for my birthday. They are a = 6, b = -20, and c = 77.
(a-b)(a^2 +ab + b^2)
(6 - -20)(6^2 + 6(-20) + -20^2)
(6 + 20)(36 – 120 + 400)
26(312) = 8216
Since the integer is negative and we are subtracting, I changed the sign from a – to a +. I noticed that the total was the same as the first problem. I noticed that the exponents were different from 3 in the first problem and 2 in the second problem.
(b – c) / (2b – a)
-20 -77 / 2(-20) -6
-97 / -46
= 2.11
I need to simplify the answer to the lowest terms. The divisor is a negative number like the dividend.