Question

B) 3x2 – 147 = 0;
1) x² – 16x + 63 = 0.​

Answer 1

Ответ:

$3 {x}^{2} - 147 = 0 \\ {x}^{2} = 49 \\ x = + - 7 \\ \\ {x }^{2} - 16x + 63 = 0 \\ x1 + x2 = 16 \\ x1x2 = 63 \\ \\ x1 = 7 \\ x2 = 9$