X^2 - 2X - 48 = 0
what two factors of - 48 add up to - 2 ?
(X + 6)(X - 8)
X = - 6
---------
X = 8
---------by inspection can solve many quadratics
If the discriminant of b2-4ac of the quadratic equation is greater the 0 then it will have 2 solutions.
The discriminant is 36 which means the quadratic equation has two solutions which are 5 and -1
How about finding the solutions of the quadratic equation: x^2-14x+49 = 0
If the discriminant of a quadratic equation is less then 0 then it will have no real solutions.
There are no real solutions because the discriminant of the quadratic equation is less than zero.
If: n squared -n -90 = 0 Then the solutions are: n = 10 or n = -9
There are two solutions for x: x=11 and x=-7
Use the quadratic equation formula to find the solutions to this equation.
x = 1 and x = 4
x2+7x+3 = 0 Using the quadratic equation formula the solutions are:- x = -6.541381265 or x = -0.4586187349
This quadratic equation has no solutions because its discriminant is less than zero.
This quadratic equation has no solutions because the discriminant is less than zero.
If the discriminant of b2-4ac of the quadratic equation is greater the 0 then it will have 2 solutions.
The discriminant is -439 and so there are no real solutions.
Using the quadratic equation formula the solutions are:- x = -27.0382854 and x = 90.5382854
The discriminant is 36 which means the quadratic equation has two solutions which are 5 and -1
How about finding the solutions of the quadratic equation: x^2-14x+49 = 0