SOLUTION: If one of the roots of the equation {{{ x^2+kx=6 }}} is 2, what is the value of k?

Algebra.Com
Question 941192: If one of the roots of the equation is 2, what is the value of k?
Answer by MathLover1(20849)   (Show Source): You can put this solution on YOUR website!
If one of the roots of the equation is , means
plug it in and find the value of





so, your equation is:



as you can see from the graph, one root is and other one is


RELATED QUESTIONS

if x^6+kx^5+x^4+kx^3+3x^2-k+2 is a multiple of (x-k) find the value of... (answered by jsmallt9)
If two prime numbers are roots of the equation x^2-12x+k=0, what is the value of... (answered by Boreal,ikleyn)
if one of the roots of the equation 3x^2+19x+k=0 is -7 Find the value of... (answered by MathLover1)
One of the roots of the equation y= -2x^2+kx+(k+2) is located at x=3 A) determine the... (answered by htmentor)
a) For the quadratic equation kx^2 + 2x + 4 = 0, find the value of k so that the roots... (answered by ankor@dixie-net.com)
Find the value of "k" in this equation, if one solution is 1/2 x^2 - kx + 15 = 0 (answered by josgarithmetic)
What is the value of k if one exact x-intercept of y=x^2+kx+1 is 3+2sqrt2... (answered by stanbon)
1. If {{{1/2}}} is one of the roots of the quadratic equation {{{kx^2-2kx+k-1=0}}}, find... (answered by josgarithmetic)
The equation {{{ x^2 +6x+k = 0 }}} has two equal roots. What is the value of... (answered by Alan3354)