Question

помогите пж
(5х-8)(4х-3)=0​

Answer 1

Ответ:

х1 = 3/4 (дробь)

х2 = 8/5 (дробь)

пошаговое объяснение:

5х-8=0

4х-3=0

х=8/5 (дробь)

х=3/4 (дробь)

Answer 2

$20 {x}^{2} - 15x - 32x + 24 \\ 20 {x}^{2} - 47x + 24 = 0 \\ d = 2209 - 4 \times 20 \times 24 = 2209 - 1920 = 289 = {17}^{2} \\ x1 = \frac{15 + 17}{40} = \frac{32}{40} = 0.8 \\ x2 = \frac{15 - 17}{40} = \frac{ - 2}{40} = - 0.05$