Solve the given simultaneous equations in x^2, x and y

  • Thread starter chwala
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chwala
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Homework Statement
See attached
Relevant Equations
Simultaneous equations
1693395998519.png
In my approach i have,

##\dfrac{x^2}{4} -1 = \dfrac{1}{y+1}##

##9-\dfrac{3}{2}=\dfrac{1}{y+1}##

then,

##\dfrac{x^2}{4} -1= 9-\dfrac{3}{2}##

##x^2-4=36-6x##

##x^2+6x-40=0##

##x_1=4, x_2=-10##

it follows that when ##x=4## then ##y+1=\dfrac{1}{3}## ⇒##y=-\dfrac{2}{3}##

and when ##x=-10## then ##y+1=\dfrac{1}{24}## ⇒##y=-\dfrac{23}{24}##

Seeking alternative ways...
 
Last edited:
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  • #2
I see no reason to hope there is a quicker way. Btw, you seem to have dropped 'x' in a couple of places when typing your post.
 

1. What are simultaneous equations?

Simultaneous equations are a set of equations that contain two or more unknown variables and must be solved together to find the values of those variables.

2. How do you solve simultaneous equations in x^2, x, and y?

To solve simultaneous equations in x^2, x, and y, you can use the substitution method or the elimination method. In the substitution method, you solve one equation for one variable and substitute that value into the other equation. In the elimination method, you manipulate the equations to eliminate one variable and solve for the remaining variables.

3. Can simultaneous equations have more than two variables?

Yes, simultaneous equations can have any number of variables. However, the number of equations must be equal to the number of variables in order to solve the equations.

4. What if there is no solution to simultaneous equations?

If there is no solution to simultaneous equations, it means that the equations are inconsistent and do not intersect at any point. This could happen if the equations are parallel or if they represent the same line.

5. Are there any shortcuts or tricks for solving simultaneous equations?

There are various techniques and strategies that can be used to solve simultaneous equations more efficiently, such as using matrices or graphing the equations. However, it ultimately depends on the specific equations and variables involved, so it is important to understand the fundamentals of solving simultaneous equations first.

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