+1286 Find the discriminant of the quadratic 5x^2 - 2x + 8 - 2x^2 + 6x + 2 - 2x^2 + 4x - 1.
+1926 First, let's combine all like terms to get a real quadratic.
We get \(x^{2}+8x+9\).
The descriminant of the quadratic is \(b^2-4ac\) for those in \(ax^2+bx+c\)
We have \(8^2-4(1)(9) = 64-36=28\)
So 28 is our answer!
Thanks! :)
+1926 First, let's combine all like terms to get a real quadratic.
We get \(x^{2}+8x+9\).
The descriminant of the quadratic is \(b^2-4ac\) for those in \(ax^2+bx+c\)
We have \(8^2-4(1)(9) = 64-36=28\)
So 28 is our answer!
Thanks! :)
