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;
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;