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egoroff_w [7]
3 years ago
14

Which of the following expressions is equivalent to the expression x - (-3) ?

Mathematics
1 answer:
kolezko [41]3 years ago
6 0
X + 3 because in math two negatives equal a positive
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Nitella [24]

Answer:

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Step-by-step explanation:

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   = x² - ( i ) x + ( i ) x - ( i)²

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we can also solve

using identity

   (a + b)(a - b) = a² - b²

   = (x+5 i)(x− 5i)    

   = x² - (5 i)²

   = x² - 25 i²

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