а) x^2 + 8 = 6x;
б) | x − 6| = 3 − 2x?
\[а)\ x^{2} + 8 = 6x\]
\[x^{2} - 6x + 8 = 0\]
\[x = - 3:\]
\[9 + 18 + 8
eq 0.\]
\[x = - 2:\]
\[4 + 12 + 8
eq 0.\]
\[x = 3:\]
\[9 - 18 + 8 = 0\]
\[- 1
eq 0.\]
\[x = 2:\]
\[4 - 12 + 8 = 0\]
\[0 = 0\]
\[Ответ:x = 2.\]
\[б)\ |x - 6| = 3 - 2x\]
\[x = - 3:\]
\[| - 3 - 6| = 3 + 6\]
\[9 = 9.\]
\[x = - 2:\]
\[| - 2 - 6| = 3 + 4\]
\[8
eq 7.\]
\[x = 3:\]
\[|3 - 6| = 3 - 6\]
\[3
eq - 3.\]
\[x = 2:\]
\[|2 - 6| = 3 - 4\]
\[- 4
eq - 1.\]
\[Ответ:x = - 3.\]