Question

4x²-22x+24=0 решите уравнение​

Answer 1

Ответ:

x1 = 4; x2 = 3/2;

Объяснение:

4x²-22x+24=0; |:2

2x²-11x+12=0;

D = b²-4ac;

D² = 11²-4×2×12 = 121 - 96 = 25;

D = √25 = 5;

x1,2 = -b +- √D / 2a;

x1 = (11 + 5) / 2 × 2 = 4;

x2 = (11 - 5)/ 2 × 2 = 6/4 = 3/2;