#72 3.04 Precalculus questions

label Mathematics
account_circle Unassigned
schedule 1 Day
account_balance_wallet $5

May 14th, 2015

Using properties of logarithms,

Log(a/b)=log a-log b

Log(ab)=log a+log b

In the given equation,

Log2(x)+log2(x+2)=log2(x+6)

Log2(x*(x+2))=log2(x+6)

Canceling log2 on both sides of the equation.

x^2+2x=x+6

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

x^2+x-6=0

x^2+3x-2x-6=0

x(x+3)-2(x+3)=0

(x+3)(x-2)=0

x=-3,+2

X lies between -10. &10

Y lies between -7.28 to +7.28 by graphing utility calculator method.graph (1).png 

May 14th, 2015

Using graphing utility,we graph the left and right hand side log equations separately.Desmos Graphing Calculator3.pdf 

May 14th, 2015

Did you know? You can earn $20 for every friend you invite to Studypool!
Click here to
Refer a Friend
...
May 14th, 2015
...
May 14th, 2015
Aug 22nd, 2017
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer