Question

(5x-1)(2x+1)-10x²=0,6​

Answer 1

Ответ:

10х²-5х-2х-1-10х²=0,6

-3х-1=0,6

-3х=1+0,6

-3х=1,6

х=-(3/0,6)

Answer 2

To solve the equation (5x - 1)(2x + 1) - 10x² = 0, you can follow these steps:

Step 1: Expand the expression on the left side of the equation:

(5x - 1)(2x + 1) - 10x² = 10x^2 + 5x - 2x - 1 - 10x^2

Step 2: Simplify the expression by combining like terms:

10x^2 + 5x - 2x - 1 - 10x^2 = (10x^2 - 10x^2) + (5x - 2x) - 1 = 3x - 1

So, the equation simplifies to:

3x - 1 = 0

Step 3: Add 1 to both sides of the equation to isolate the term with x:

3x - 1 + 1 = 0 + 1

3x = 1

Step 4: Finally, divide both sides by 3 to solve for x:

3x / 3 = 1 / 3

x = 1/3

So, the solution to the equation (5x - 1)(2x + 1) - 10x² = 0 is x = 1/3.