Practice Problem 2

Solve this on paper, preferably without a calculator:
2x2-8x+8 = 0
After you are done, you can click this button to see the solution, to check if you got it right.















Quick Answer
Actual Graph of y = 2 x2-8 x+8
x = 2 (sometimes solutions may be close approximations of the actual solutions)
Expression factored: 2 x2-8 x+8 = 2 (x-2)(x-2)

Solution ExplainedEquation:
a = 2 b = -8c = 8
Discriminant: b2-4ac = 8 2-4*2*8 = 0
Discriminant (0) is zero. There is only one solution. x = -b/2a
or
x = 8/(2*2 ) = 8/(4) = 2