Question

-5(х-7)+4=-(х+3)-4х (3х-6)(7-х)(2х-5)=0

Answer 1

Ответ:

Объяснение:

(3х-6)(7-х)(2х-5)=0

3x-6 = 0

7-x = 0

2x-5 = 0

x = 2 ; 2,5 ; 7

-5(х-7)+4=-(х+3)-4х

-5x + 39 = -x - 3 -4x

тут точно в правой части перед скобкой минус?

39 = -3,

нет решений

Answer 2

It seems like you have two equations that you'd like to solve:

1. -5(x - 7) + 4 = -(x + 3) - 4x
2. (3x - 6)(7 - x)(2x - 5) = 0

Let's solve each equation step by step:

Equation 1:

Simplify the equation: -5x + 35 + 4 = -x - 3 - 4x -5x + 39 = -x - 3 - 4x

Combine like terms on both sides: -5x + 5x + 4x = -3 - 39 4x = -42

Divide by 4: x = -42 / 4 x = -10.5

So, the solution for Equation 1 is x = -10.5.

Equation 2:

Given the equation: (3x - 6)(7 - x)(2x - 5) = 0

The equation is satisfied if any of the factors equals zero, because the product of any number and zero is zero. So, set each factor equal to zero and solve for x:

1. 3x - 6 = 0 3x = 6 x = 2

2. 7 - x = 0 -x = -7 x = 7

3. 2x - 5 = 0 2x = 5 x = 5/2 x = 2.5

So, the solutions for Equation 2 are x = 2, x = 7, and x = 2.5.

In summary, the solutions for the two equations are: Equation 1: x = -10.5 Equation 2: x = 2, x = 7, x = 2.5