Solve g(x2)=g(x)-6: Functions Problem Homework

  • Thread starter Kushal
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In summary, to solve g(x2) = g(x) - 6, substitute x2 for x in the formula g(x) = b - \sqrt[3]{x}. To show that g(x6) + 4g(x3) \leq 5b + 4 for all real values of x, substitute x6 and x3 for x in the formula and compare it to the given inequality.
  • #1
Kushal
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Homework Statement



part of the question is:

g:x = b - [tex]\sqrt[3]{x}[/tex]

x is real

Solve g(x2) = g(x) - 6

Show that:

g(x6) + 4g(x3) [tex]\leq[/tex] 5b + 4 for all real values of x

The Attempt at a Solution



If i at least have a hint on how to start the first part i guess i'll be able to do the second one...

thank you!
 
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  • #2


errmmm it's been solved...

it was as simple as replacing the x in g(x) by x2

thanks anyway
 
  • #3


Kushal said:

Homework Statement



part of the question is:

g:x = b - [tex]\sqrt[3]{x}[/tex]
Do you mean g(x)= b- [tex]\sqrt[3]{x}[/tex]?

x is real

Solve g(x2) = g(x) - 6
Well, what is g(x2)? You are given the formula for g(x), just put x2 in place of x.

Show that:

g(x6) + 4g(x3) [tex]\leq[/tex] 5b + 4 for all real values of x

The Attempt at a Solution



If i at least have a hint on how to start the first part i guess i'll be able to do the second one...

thank you!
What are g(x6) and g(x3)? Again, just replace x in the formula for g(x) by the appropriate thing.
 

1. What does the notation g(x2) mean in this equation?

The notation g(x2) means that the function g is being evaluated at the value x2. It is similar to substituting a number in place of x in a function.

2. How do I solve this equation?

To solve this equation, you can first rewrite it as g(x2) - g(x) + 6 = 0. Then, you can use algebraic techniques such as factoring or the quadratic formula to find the values of x that satisfy the equation.

3. Is there more than one solution to this equation?

Yes, there can be more than one solution to this equation. It depends on the specific function g and the values of x that make the equation true.

4. What does it mean to solve a function problem?

Solving a function problem means finding the values of the independent variable (in this case, x) that make the function equation true. It is a way to find the input values that produce a desired output.

5. How can I check if my solution is correct?

You can check your solution by substituting the value of x into the original equation and seeing if it produces the desired result. You can also use a graphing calculator or software to graph the function and see if the solution aligns with the points on the graph.

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