Question

(3x-20)(4x+28)(0,2-0,06x)=0

Answer 1

Ответ:

Ответ: -7 , 3 1/3 . 6 2/3

Объяснение:

3x-20 = 0 или 4x+28 = 0 или 0,2-0,06x = 0

3x = 20              4x = -28         0.06x = 0.2 (перетаскиваем x в другую часть)

x = 6 2/3 (дробь)   x = - 7            x = 3 1/3 (дробь)

Answer 2

It looks like you've provided an equation with a polynomial expression multiplied by another polynomial expression, and you're looking to solve for the value of "x" that makes the equation equal to zero. Let's break down the equation step by step and solve for the possible values of "x":

Given equation: (3x - 20)(4x + 28)(0.2 - 0.06x) = 0

The equation is already factored, so we can use the zero product property: If the product of several factors equals zero, then at least one of the factors must be equal to zero.

So we have three factors: (3x - 20), (4x + 28), and (0.2 - 0.06x). We need to set each of these factors equal to zero and solve for "x" in each case.

1. Setting (3x - 20) equal to zero: 3x - 20 = 0 3x = 20 x = 20 / 3 x ≈ 6.67

2. Setting (4x + 28) equal to zero: 4x + 28 = 0 4x = -28 x = -28 / 4 x = -7

3. Setting (0.2 - 0.06x) equal to zero: 0.2 - 0.06x = 0 -0.06x = -0.2 x = -0.2 / -0.06 x ≈ 3.33

So, the solutions for the equation (3x - 20)(4x + 28)(0.2 - 0.06x) = 0 are approximately: x ≈ 6.67, x = -7, and x ≈ 3.33.

These are the values of "x" that make the equation equal to zero.