if | 20 x - 10 | = 90 , then find the product of the values of x ?
"| 20 x - 10 | = 90 20 x - 10 = 90 or 20 x - 10 = - 90 20 x = 100 or 20 x = - 80 x = 5 or x = - 4 product = - 4 * 5 = - 20 answer is e"
subtract(subtract(subtract(90, 10), add(90, 10)), 10)