Square root of x^2-4 plus x^2/x^2+1

1 answer:

3 0

√x² - 4 + x²/x² + 1
x - 2 + x²/x² + 1
x - 2 + x² 
 1 x² + 1
(x - 2)(x² + 1) + x² 
(1)(x² + 1) x² + 1
x³ + x - 2x² - 2 + x² 
 x² + 1 x² + 1
x³ - 2x² + x² + x - 2
 x² + 1
x³ - x² + x - 2
 x² + 1
x³ + x - 2

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Step-by-step explanation:

we know that

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Multiply

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therefore

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