Question

Хелп ми 5x^2=1.25 x= ?

Answer 1

Ответ:

-0,5 и 0,5

Пошаговое объяснение:

5х² = 1,25

х² = 0,25

х = -0,5 или х = 0,5

Answer 2

Ответ:

0,5;   -0,5

Пошаговое объяснение:

5x²=1,25; разделим обе части на 5

х²=0,25

х²-0,25=0

х²-0,5²=0

(х-0,5)(х+0,5)=0

х1=0,5;  х2=-0,5.

Answer 3

Sure, I can help you solve the equation 5x^2 = 1.25 for x. To find the value of x, follow these steps:

Step 1: Move all the terms to one side of the equation to set it to zero: 5x^2 - 1.25 = 0

Step 2: To solve this quadratic equation, we can use the quadratic formula: The quadratic formula is given by: x = (-b ± √(b^2 - 4ac)) / 2a

In our equation, a = 5, b = 0 (since there is no x term), and c = -1.25.

Step 3: Substitute the values into the formula: x = (0 ± √(0^2 - 4 * 5 * -1.25)) / 2 * 5 x = (± √(0 - (-25))) / 10 x = (± √(25)) / 10 x = (± 5) / 10

Step 4: Simplify the expression: x = 5 / 10 or x = -5 / 10

Step 5: Reduce the fractions: x = 1/2 or x = -1/2

So, the solutions to the equation 5x^2 = 1.25 are x = 1/2 and x = -1/2.