Question

4.3(x+2)+5.2(x - 1) - 20x12x + 24 + 10x - 10 - 20x+ + -2x = -14​

Answer 1

Ответ:

1) 2х + 14 = 0

2) х = -7

Объяснение:

4×3(x+2)+5×2(x - 1) - 20x

12x + 24 + 10x - 10 - 20x

《2х + 14 = 0》

2x = -14

《х = -7​》

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Answer 2

$x = \frac{314}{19} \\ x = 16 \frac{10}{19}$

Answer 3

It seems there might be a typo or a formatting issue in the equation you provided. I'll do my best to interpret and simplify it for you. Let's correct it to:

4.3(x + 2) + 5.2(x - 1) - 20x^2 + 24 + 10x - 10 - 20x - 2x = -14

Now, we can simplify the equation:

1. Distribute the terms inside the parentheses:

4.3x + 8.6 + 5.2x - 5.2 - 20x^2 + 24 + 10x - 10 - 20x - 2x = -14

2. Combine like terms:

(4.3x + 5.2x + 10x - 20x - 2x) + (8.6 - 5.2 + 24 - 10) - 20x^2 = -14

Now, add and subtract the like terms and constants:

(−2.7x + 17.4) - 20x^2 = -14

3. Move the constant term to the other side of the equation:

−2.7x + 17.4 - 14 = -20x^2

Combine the constants:

−2.7x + 3.4 = -20x^2

4. Bring all terms to one side to set the equation to zero:

-20x^2 + 2.7x - 3.4 = 0

This is a quadratic equation in standard form. If you want to solve for x, you can use the quadratic formula:

x = (-b ± √(b² - 4ac)) / 2a

In this equation, a = -20, b = 2.7, and c = -3.4. Plug these values into the quadratic formula to find the solutions for x.