Question

СРОЧНО ДАЮ 20 БАЛЛОВПросто решить уравнение1)x²+5x=02)(3-x)(x+4)+x²=0​

Answer 1

Ответ дан на фото.

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Answer 2

1. x² + 5x = 0

To solve this equation, we can factor out an x:

x(x + 5) = 0

Now we have two factors that could equal zero:

x = 0 or x + 5 = 0

For x = 0, the equation holds true.

For x + 5 = 0, we can subtract 5 from both sides:

x = -5

Therefore, the solutions to the equation are x = 0 and x = -5.

2. (3 - x)(x + 4) + x² = 0

First, let's expand the equation:

3x + 12 - x² - 4x + x² = 0

Simplifying further, we combine like terms:

-x + 12 - 4x = 0

-5x + 12 = 0

Subtracting 12 from both sides:

-5x = -12

Dividing both sides by -5:

x = 12/5 or x = 2.4

So, the solutions to the equation are x = 12/5 and x = 2.4.