To verify if the roots of the equation are real numbers,
we'll have to compute the roots. Before solving the equation, we'll impose the
constraints of existence of logarithms.
Since x^2+3 is
positive for any value of x, we'll set the only constraint for the given
equation:
2x -
5>0
2x>5
x>5/2
log
(2x-5) = log (x^2+3)
Since the bases are matching, we'll
use the one to one property:
2x - 5 = x^2 +
3
We'll move all terms to one
side:
x^2 + 3 - 2x + 5 =
0
We'll combine like
terms:
x^2 - 2x + 8 = 0
We'll
apply the quadratic formula:
x1 = [-b+sqrt(b^2 -
4ac)]/2a
x1 = [2+sqrt(4 -
32)]/2
Since sqrt (-28) is not a real value,
the equation has no real solutions.
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