SOLUTION: The sum of the roots of 8x�

SOLUTION: The sum of the roots of 8x� - 2x = 1 is:

Question 446754: The sum of the roots of 8x� - 2x = 1 is:
Found 2 solutions by rfadrogane, josmiceli:
Answer by rfadrogane(214) (Show Source): You can put this solution on YOUR website!
The sum of the roots of 8x� - 2x = 1 is:
Sol'n:
8x� - 2x - 1 = 0
divide the equation by 8:
x�- (1/4)x - 1/8 = 0
from the properties of quadratic equation:
sum of its roots = 1/8 ----answer
soon the open: www.mathgeas.com

Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
if I say the roots are and ,

then

and

(1)
given:

(2)
Comparing (2) with (1),

The sum of the roots is 1/4
check:
Complete the square:

and, also

OK
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