Question

-(x^2-2)-0,3x+7x+(x^2-0,2x)=0​

Answer 1

Ответ:

- 4/13

Пошаговое объяснение:

Надеюсь, все правильно

Answer 2

Ответ:

Пошаговое объяснение:

-х^2+2-0.3х+7х+х^2-0.2х=0

6.5х=-2

Х=-20/65=-4/13

Answer 3

To solve the given equation, first, let's simplify and combine like terms:

-(x^2 - 2) - 0.3x + 7x + (x^2 - 0.2x) = 0

Step 1: Remove parentheses by distributing the negative sign and combining x^2 terms:

• x^2 + 2 - 0.3x + 7x + x^2 - 0.2x = 0

Step 2: Combine like terms:

(-x^2 + x^2) + (7x - 0.3x - 0.2x) + 2 = 0

Step 3: Simplify further:

6.5x + 2 = 0

Step 4: Isolate x on one side by moving constants to the other side:

6.5x = -2

Step 5: Solve for x by dividing both sides by 6.5:

x = -2 / 6.5

Step 6: Simplify the result:

x ≈ -0.3077

So, the solution to the equation is approximately x = -0.3077.