Question

Екі санның қосындысының мәні 15, ал көбейтіндісінің мәні 54 . осы сандарды табыңдар

Answer 1

{х+у=15 {х=15-у
{х×у=54 {(15-у)×у=54
15у-у^2=54
-у^2+15у-54=0
D=15^2(квадрат)-4×(-1)×(-54)=225-216=9
у1=-15+3/(бөлу) -2=6
у2=-15-3/-2=9
х1=15-6=9
х2=15-9=6
яғни жауабы х=9 у=6

Answer 2

Finding the Values of Two Numbers

To find the values of the two numbers, let's denote the first number as x and the second number as y. We are given that the sum of the two numbers is 15 and the difference between them is 54.

Formulating Equations

We can represent the given information as a system of equations: 1. The sum of the two numbers is 15: x + y = 15. 2. The difference between the two numbers is 54: x - y = 54.

Solving the System of Equations

We can solve this system of equations using the method of substitution or elimination to find the values of x and y.

Using the Substitution Method

We can solve the first equation for one variable and substitute it into the second equation: 1. From the first equation, we have x = 15 - y. 2. Substituting this value of x into the second equation, we get (15 - y) - y = 54. 3. Simplifying, we find 15 - 2y = 54. 4. Solving for y, we get y = -19. 5. Substituting the value of y back into the equation x = 15 - y, we find x = 15 - (-19) = 34.

Conclusion

Therefore, the two numbers are 34 and -19.

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