SOLUTION: I've trying to figuring out what's wrong with this problem but cant figure it out?
t^2-5t=7
Discriminant=(-5)^2-4(1)(7)
=25-28
=-3
Discriminant is negative no real
Algebra.Com
Question 1016401: I've trying to figuring out what's wrong with this problem but cant figure it out?
t^2-5t=7
Discriminant=(-5)^2-4(1)(7)
=25-28
=-3
Discriminant is negative no real solution.
Found 3 solutions by Boreal, josgarithmetic, fractalier:
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
You need to bring the 7 to the other side, and then it will be negative.
t^2+5t-7=0.
Now you can solve.
The discriminant is 53.
x= (1/2) (5 +/- sqrt (53))
Answer by josgarithmetic(39630) (Show Source): You can put this solution on YOUR website!
Discriminant is , a positive real number. Equation has two real solutions.
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
The discriminant is found from the quadratic in standard form as b^2 - 4ac.
Let's get this guy in standard form...
t^2 - 5t - 7 = 0
so that
b^2 - 4ac = (-5)^2 - 4(1)(-7) = 25 + 28 = 53
That tells us we have two real roots.
RELATED QUESTIONS
Sherry’s teacher told her that if she was foiling conjugates she would not have any... (answered by ikleyn,MathTherapy)
Im trying to figure out this problem it says to evaluate... (answered by Alan3354)
I'm trying to help my niece with an algebra problem that has both of us stumped...... (answered by shree840,mananth,Alan3354)
9+4(x+1)=25
i have tried many different ways and cant seem to figure it out. example:... (answered by rfer)
Solve: 4/m^2-7=1
cant figure this one out.. math is hard, but... (answered by mukhopadhyay)
I need help figuring out what to do with this
1/2 + 6/x =... (answered by allyw269)
x/5 - y/10 = 4
x/2 + y/4 = 5
Solve the system of equation using the addition... (answered by Edwin McCravy)
Could you please help me with figuring out how to do this problem?
r^2+3r=5
I... (answered by checkley77)
I need help with this inequality: |3x-2| ( < or equal to) 5
How would I graph this... (answered by mananth)