SOLUTION: 4x^2 - 8x - 5=0
answer x= -1/2 or 5/2
need a full break down of how my text book got this answer
Algebra.Com
Question 184643: 4x^2 - 8x - 5=0
answer x= -1/2 or 5/2
need a full break down of how my text book got this answer
Found 2 solutions by solver91311, josmiceli:
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Note that:
 + (2\ \times\ 1) = -10 + 2 = -8)
So this factors:
(2x - 5) = 0)
Using the Zero Product Rule:
or
John
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Use the quadratic formula:
where
and
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