MATH,HELP

posted by .

Can someone show me how to even do this problem.

Find all positive values for K for which each of the following can be factored.

x^2 + x - k

News flash: It can be factored with any term (although the roots may not be real roots).

Now if you mean factored with real values for the factors a and b, ...
IT has to add to one, multiply to k.

a+b=1
ab=k
k=0 is a solution, but zero is not positive nor negative.
k=2 a=2, b=-1
k=6 (a=+3, b=-2) is a solution
k=20 a=5, b=-4 is a solution
Now, finding all positive values for k will be a great task, because this goes on ad infinitum. Example...
k=8.4525 a= 3.45 b=-2.45

you got me here i don't understand. So how do i determine what to substitue/.

Respond to this Question

 First Name School Subject Your Answer

Similar Questions

1. math,factoring,help

Can someone please show me step by step how to do these. I've read the book and there examples and It is just not clicking. Directions: Factor each of the following polynomials completely Problem:#1 14x^2-20x+6 Directions:Find all …
2. values for k, math,help

can someone show me the steps to work out this problem that is diving me nuts.. Directions: Find all positive values for k for which each of the following can be factored. x^2+x-k I am completely cluelis towards this problem....i've …
3. ALGEBRA

Find all positive values for k for which each of the following can be factored. I have 2 problems i think i got the one right but not sure the second one i have no idea where to even start 2x^3+16x^2-40x=2x(x^2+8x-20) (x-2)(x+10)=8x …
4. algebra

Find all positive values for k for which each of the following can be factored. x^2+3x+kthe coefficent of the middle term is 3 3=2+1 k=2*1=2 did i do this right This one I had no Idea where to start can some one please explain it to …
5. mat 117/algebra

Find all positive values for k which each for each of the following can be factored. (1) x^2 + x + k) k<= 1/4
6. Algebra

Find all positive values for k for which each of the following can be factored. X^2-x-k Using the quadratic equation, x= 1/2 +-1/2* sqrt (1+4k) Now, the sqrt has to be of a positive number, so 1+4k>0 so any value of k>-1/4 should …
7. Algebra

Find all positive values for k for which each of the following can be factored. X^2-x-k (Your answer seems to be the same as the other problem x^2+x-k ) Is this correct too?
8. algebra

Find all positive values for K for which each of the following can be factored. x^2 + x - k I don't even know where to begin on this one! By trial and error, I came up with -2 and -6. Are those right?
9. Algebra I

Please help. Find all positive values for k for which the following can be factored. x^2 + x - k
10. Algebra

Please help ASAPPP!!!! I have no idea how to even start on this! f(x)=9x^3+2x^2-5x+4 and g(x)=5x^3-7x+4. What is f(x)-g(x)?

More Similar Questions