3 years ago

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

1 answer:

4 0

<span>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</span>

You might be interested in

Which expression is equivalent to 3(6m) + m? A. 19m B. 21m C. 7m + 3 D. 18m + 6m²

Lelechka [254]

Answer:

3(6m)+m=18m+m=19m so your answer would be A. 19m

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

A pencil has a density of 8.75g\ml. it has a mass of 3.5grams what is the volume?

leva [86]

I think that to find the volume , you just need to do:
3.5 grams *1ml/8.75 g =0.4 ml
so you do it the way that the gram will be cancelled

8 0

2 years ago

Read 2 more answers

Opinions Please! I take a lot of notes in school, just like everybody else. (mostly in math, bio, and eng) Im looking for a good

asambeis [7]

Answer:

Best Ballpoint Pen: Uni-Ball Jetstream Pen.

Best Gel Pen: Pilot G2 Retractable Gel-Ink Pens.

Best Rollerball Pen: Uni-Ball Vision Elite Rollerball Pen.

Best for Lefties: Pilot Razor Point II Marker Stick Pens.

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Which expression is equivalent to 4c+ c- 2c?

harkovskaia [24]

Answer: 3c

Step-by-step explanation: add 4 to 1 and take away 2.

3 0

2 years ago

Read 2 more answers

eric and his crew have 50 trees to plant in 8 hours today they planted 40 trees. if they work at the same rate tomorrow how long

Inessa05 [86]

1.6 hours for the rest of the 10 trees

6 0

3 years ago

Read 2 more answers