Tuesday

September 30, 2014

September 30, 2014

Posted by **Scott** on Monday, July 23, 2007 at 10:05pm.

X^2-x-k

(Your answer seems to be the same as the other problem x^2+x-k )

Is this correct too?

Consider your equation to be in the form ax^2 + bx = c = 0. It can be factored (that is, have real answers for x) if the term b^2 - 4ac is positive or zero. In your case,

b^2 - 4ac = 1 + 4k, so 1+4k >or= 0

k >or= -1/4

If k = -1/4, you have the special case

(x-1/2)^2 = 0, with only one root, x = 1/2

**Answer this Question**

**Related Questions**

MATH,HELP - Can someone show me how to even do this problem. Find all positive ...

Algebra I - Please help. Find all positive values for k for which the following ...

mat 117/algebra - Find all positive values for k which each for each of the ...

Algebra - Find all positive values for k for which each of the following can be ...

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

algebra - Find all positive values for k for which each of the following can be ...

values for k, math,help - can someone show me the steps to work out this problem...

ALGEBRA - Find all positive values for k for which each of the following can be ...

Math - x^2+x-k find all positive values for k, if it can be factored Allowed ...

math,factoring,help - Can someone please show me step by step how to do these. I...