Question

Y2-12y+20=0 Сроснооо

Answer 1

Ответ:

у2 - 12у = 20

12 у = 20 : 2

12 у = 10

у = 12/10

Answer 2

To solve the quadratic equation y^2 - 12y + 20 = 0, we can use the quadratic formula. The quadratic formula states that for an equation in the form ax^2 + bx + c = 0, the solutions for x can be found using the formula:

x = (-b ± √(b^2 - 4ac)) / (2a)

Comparing the given equation y^2 - 12y + 20 = 0 with the general form, we have a = 1, b = -12, and c = 20. Plugging these values into the quadratic formula, we get:

y = (-(-12) ± √((-12)^2 - 4(1)(20))) / (2(1)) y = (12 ± √(144 - 80)) / 2 y = (12 ± √64) / 2 y = (12 ± 8) / 2

Now, we can calculate the two possible solutions:

1. When y = (12 + 8) / 2: y = 20 / 2 y = 10

2. When y = (12 - 8) / 2: y = 4 / 2 y = 2

Therefore, the solutions to the equation y^2 - 12y + 20 = 0 are y = 10 and y = 2.