3 years ago

Log(x+3)(2x+3)+log(x+3)(x+5)=2

1 answer:

4 0

log(x-3)+log(x) = 2 + log(x+2)
---------------------------
log[(x-3)x] - log(x+2) = 2
-----
log[(x^2-3x)/(x+2)] = 2
----
(x^2-3x)/(x+2) = 2^2
-------

x^2-3x = 4x+8
x^2 - 7x - 8 = 0
Factor:
(x-8)(x+1) = 0
Positive solution:
x = 8

You might be interested in

a card is drawn at random from a standard 52 card deck has a 1/13 chance of being at 8. What is the probability of the car not b

Free_Kalibri [48]

Answer:

12/13

Step-by-step explanation:

There are 52 cards in the deck

4 are aces

That leaves 52-4 or 48 that are not aces

P(not an aces) = cards that are not aces / total

= 48/52

=12/13

5 0

3 years ago

Read 2 more answers

Nate has a bag containing 3 red, 2 blue, 4 yellow, and 3 green marbles. If he randomly chooses one marble from the bag, what is

SVEN [57.7K]

The probability that the marble will be blue if he shakes the bag and when you puts his hand into the bag, to move it around and probably he'll get the blue marble.

Hopefully, it correct.... :)

4 0

3 years ago

Sue wrote a double facts.It has a sum less than 10 and greater than 4.The addends are each less than 5.What fact might she have

Eduardwww [97]

Maybe 2+3 is the answr

6 0

4 years ago

Plz help me i need help its for a test i give brailies (:

Anarel [89]

C......................................

8 0