Saturday, August 30, 2014

Find all solutions of the equation 2^(x^2-5x+10)-64=0

We'll shift the number alone to the right
side:


2^(x^2-5x+10) = 64


We'll
create matching bases both sides. For this reason, we'll re-write 64 =
2^6


We'll re-write the equation as it
follows:


2^(x^2-5x+10)=
2^6


Since the bases are matching now, we'll apply one to
one rule and we'll
get:


(x^2-5x+10)=6


We'll
subtract 6 both
sides:


x^2-5x+10-6=0


x^2-5x+4=0


We'll
apply quadratic
formula:


x1=[5+sqrt(25-16)]/2


x1=(5+3)/2


x1=4


x2=(5-3)/2


x2=1


The
complete set of solutions of the exponential equation is: {1 ;
4}.

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