marsay24
10.02.2020 •
Mathematics
Describe the error made in subtracting the two rational expressions shown:
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Ответ:
You must subtract all terms of the numerator being subtracted out, not just the first term. The negative 2 should have been subtracted out to get a numerator of x + 1 - x + 2. The simplified numerator of the difference should be 3, not –1.
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Step-by-step explanation:
Ответ:
x2 + 4x + 3 = 0
Step-by-step explanation:
(x + 3)(x + 1) = 0