adsense
The equation \({\log _2}\frac{{{x^2} + 3x + 2}}{{3{x^2} – 5x + 8}} = {x^2} – 4x + 3\) there are solutions \({x_1};{x_2}\). Calculate the value of the expression \(A = x_1^2 + x_2^2 – 3{x_1}{x_2}\).
A. \(31\). B. \( – 1\). C. \(1\). D. \( – 31\).
The answer
adsense
Condition: \(\frac{{{x^2} + 3x + 2}}{{3{x^2} – 5x + 8}} > 0\)\( \Leftrightarrow {x^2} + 3x + 2 > 0\)\( \Leftrightarrow \left[\begin{array}{l}x>–1\\x0)\);\(f’
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These are VD-VDC sentences in the topic REVIEW OF CODE FUNCTIONS – LOGARIT.
