Question

Решите уравнение 5х-25х+15

Answer 1

5x+25x+15=0
5x+25x=-15
30x=-15
x=-2

Answer 2

I can help you with solving equations. To solve the equation 5x-25x+15=0, we need to use the quadratic formula:

$$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$

where a=5, b=-25, and c=15. Plugging in these values, we get:

$$x = \frac{25 \pm \sqrt{625 - 300}}{10}$$

Simplifying the square root and dividing by 10, we get:

$$x = \frac{5 \pm \sqrt{325}}{2}$$

These are the two solutions for x. You can use a calculator to get an approximate decimal value for each solution. For more help with solving equations, you can check out these websites: [Symbolab](https://ru.symbolab.com/solver/equation-calculator) or [Mathway](https://www.mathway.com/ru/Algebra).