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dalvyx [7]
3 years ago
15

Is 21x9=9x21 identity

Mathematics
2 answers:
Ymorist [56]3 years ago
8 0
No, it is not because IDENTITY means itself, so the answer has to be the same. 
laila [671]3 years ago
7 0
Nope because it has its own identy like you are your own pearson with your own identy so just think of it that way
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The difference of the square of a number and 10 is equal to 3 times that number. Find the negative solution.
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Answer:

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Step-by-step explanation:

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x^2-3x-10 = 0

Factoring:

(x-5)(x+2) = 0. Here, we see that there are two solutions: x = 5 and x = -2. So, the negative solution is x = -2.

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zaharov [31]

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