SOLUTION: i dont understand what they are asking. here's the question : using the discriminant tell whether the equation has two solutions,one solution,or no real solution. problem: x^2-5x+6
Algebra.Com
Question 733581: i dont understand what they are asking. here's the question : using the discriminant tell whether the equation has two solutions,one solution,or no real solution. problem: x^2-5x+6=0......how do i solve this equation?
Answer by sachi(548) (Show Source): You can put this solution on YOUR website!
in an eqn ax^2+bx+c=0 the discriminant=b^2-4ac
& the solns are [-b+-sqrt(b^2-4ac)]/2a
now if 1)b^2=4ac then there is one solution i.e -b/2a
if 2)b^2>4ac then there are two solutions i.e [-b+-sqrt(b^2-4ac)]/2a
but if 3)b^2<4ac then there are no real solutions asthe sqrt will have no real value
now here in x^2-5x+6=0 a=1,b=-5& c=6
so b^2-4ac =1
so there are two solutions by 2) above 3 & 2 ans
RELATED QUESTIONS
write the equation of the line which has y-intercept (0,5)and is perpendicular to the... (answered by jim_thompson5910,checkley71)
My son's homework question is:
Find the value(s) of a for which the equation is an... (answered by nerdybill,scott8148,MathTherapy)
This question is asking me "Determine whether the given length can be sides of a right... (answered by ewatrrr)
Can you tell me if I am correct? Determine whether the graphs of the two equation s are... (answered by richwmiller)
1 and 2 are supplementary. If m 1 = 60° and m 2 = (2x + 20). What is the value of x? i... (answered by ewatrrr,Earlsdon,Tatiana_Stebko)
factor by using the distributive law 7+7y please help!!!!!!!!!!!!
I do not understand... (answered by mangopeeler07)
i dont understand what they are asking me to do, the directions state that i need to... (answered by stanbon)
http://www.algebra.com/tutors/students/your-answer.mpl?question=967815
I am asking how... (answered by KMST)
I'm not sure I understand what they are asking us to do for this problem. Evaluate the... (answered by Alan3354)