solve log5(x^2-6)=log5(x+2)

Question

apoorvk · Answer

take antilog both sides, and solve.

anonymous · Answer

is the answer -4 though

anonymous · Answer

you get x^2-x-8 = 0
 since the bases are the same

apoorvk · Answer

Nope. Solve the quadratic.^

anonymous · Answer

so x = 3.72 or x = -2.37

anonymous · Answer

yes... those are solutions to the quadratic... but only one of them is a solution to the log equation.

anonymous · Answer

log5(x^2-6)=log5(x+2)
since the bases are the same

(x^2-6)=(x+2)

simplifying :
x^2-x-8 = 0

solve quadratic equation using quadratic formula :
you will get 
either x = 3.72 or x = -2.37

since log cannot be negative :
therefore :

                                           ANS :       x=3.72

anonymous · Answer

Opps, sorry dude, input error in calculator

X= 3.372281323
Sorry, was to quick ..

So,                                                                 ANS = 3.37

I'am new, interface is so cumbersome !