SOLUTION: solve by using your graphing calculator: 1. x^2-8x=-18 2.13x^2+24x-1=-14

Algebra ->  Linear-equations -> SOLUTION: solve by using your graphing calculator: 1. x^2-8x=-18 2.13x^2+24x-1=-14      Log On


   

Question 1043804: solve by using your graphing calculator:
1. x^2-8x=-18
2.13x^2+24x-1=-14
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
x^2-8x+18=0
It has no real roots.
the discriminant (b^2-4ac)=(64-72)=-8
You input the function in Y= and push graph.
graph%28300%2C300%2C-10%2C10%2C-10%2C10%2Cx%5E2-8x%2B18%29
13x^2+24x+13=0, adding 14 to both sides.
This, too has no real roots. The discriminant is (576-676)=-100
graph%28300%2C300%2C-5%2C5%2C-10%2C10%2C12x%5E2%2B24x%2B13%29