Question

помогите!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

Пошаговое объяснение:

$(20 + 8x) \times (6x - 7) \times (30 - 5x) = 0$

$20 + 8x = 0 \\ 6x - 7 = 0 \\ 30 - 5x = 0$

$8x = - 20 \\ 6x = 7 \\ - 5x = - 30$

$8x \div 8 = x \\ 6x \div 6 = x \\ - 5x \div ( - 5) = x$

$- 20 \div 8 = - 2.5 \\ 7 \div 6 = 1.16 \\ - 30 \div ( - 5) = 6$

Ответ в десятичной форме:

$x = - 2.5 \\ x = 1.16 \\ x = 6$

Ответ в точной форме:

$x = - \frac{5}{2} \\ \\ x = \frac{7}{6} \\ \\ x = 6$

Answer 2

Ответ:

(20+ 8x)(6x-7)(30-5x) = 0

(20+8x) = 0

(6x - 7) = 0

(30 – 5x) = 0