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ANTONII [103]
3 years ago
7

Combine like terms x+x-x+y+y+y-z+z-z

Mathematics
1 answer:
stiks02 [169]3 years ago
3 0

Answer:

X^3 x Y^3 x Z^3

Step-by-step explanation:

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Let a and b be real numbers satisfying a^3 - 3ab^2 = 47 and b^3 - 3a^2 b = 52. Find a^2 + b^2.
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Answer: a²+b² = -99/2

Step-by-step explanation:

Since we are given two equations, this equations will be solved simultaneously to get a² and b²

a³ - 3ab² = 47 ... 1

b³ - 3a² b = 52... 2

From 1, a(a² - 3b²) = 47...3

From 2, b(b² - 3a²) = 52... 4

Adding 3 and 4, we have;

a²+b²-3b²-3a² = 99 (note that a and b will no longer be part of the equations as they have been factored out)

a²+b²-(3b²+3a²) = 99

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Taking the difference we have

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Step-by-step explanation:

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