SOLUTION: Solve the following equations:
{{{ ln(x+4)=ln(x-8)-ln(x+1) }}}
{{{ log6 (2-x) + log6 (11-x) = 2 }}}
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Question 1001259: Solve the following equations:
Found 2 solutions by MathLover1, ikleyn:
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
........if log same, we have
.......solve for
....use quadratic formula
solutions:
or
....change the base
.....if log same, we have
....solve for
solutions:
if =>-> disregard it it will make log of negative number which is undefined
if =>
Answer by ikleyn(52787) (Show Source): You can put this solution on YOUR website!
.
Solve the following equations:
-----------------------------------
= - ----->
= ----->
(x+4)*(x+1) = x-8,
= ,
= .
Discriminant d = 4^2 - 4*1*12 = 16 - 48 = -44 is negative -----> no real solutions.
Answer. There is no real solutions.
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