1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Illusion [34]
3 years ago
14

Please solve by factoring 5x^2+7x-66=0...use a comma to seperate answers.

Mathematics
1 answer:
never [62]3 years ago
7 0
5x^2+7x-66=0 \\ \\5x^2+7x -22x+ 22x-66=0 \\ \\ 5x^2-15x+ 22x-66=0 \\ \\5x(x-3)+22(x-3)=0 \\ \\ (x-3)(5x+22)=0\\ \\x-3 = 0 \ \ or \ \ 5x+22 =0 \\ \\ x=3 \ \ or \ \ 5x=-22 \ \ /:5 \\ \\x=3 \ \ or \ \  x=-\frac{22}{5} \\ \\x=3 \ \ or \ \  x=-4\frac{2}{5}
You might be interested in
For f(x) = 3x+1 and g(x) = x^2-6, find (g/f)(x)
nexus9112 [7]
G/f(x) = x^2 - 6 / 3x + 1
3x + 1 = x^2 - 6
x^2 - 3x - 6 - 1 = 0
x^2 - 3x - 7 = 0
x = 4.54 , x = - 1.54

i am a mathematics teacher. if anything to ask please pm me
4 0
3 years ago
Read 2 more answers
Willy the Wombat is 50 feet from a tree. The tree is 75 feet tall. At what angle of elevation should Willy look to see the top o
dezoksy [38]
56.3 degrees is the answer.

Explanation:

3 0
2 years ago
I NEED HELP ASAP. 35 POINTS. In order for two polygons to be similar, two conditions must be met. First, all pairs of correspond
galina1969 [7]

Draw a square with side length of 4. All four angles are 90 degrees and all four sides are 4.

Then draw a rectangle with length of 9 and with of 2. All four angles would be 90 degrees, but the proportion of the 2 sides are different when compared to the sides of the square.

3 0
2 years ago
What type of decimal is this fraction:11/20 ?
joja [24]
Terminating because the decimal ends rather than going on forever which would be repeating
4 0
3 years ago
Read 2 more answers
Please please please help me with this. I can't remember how to work this problem out. If someone could explain to me how to do
RideAnS [48]
If the two triangles are congruent it means that their side lengths are equal, so we can assume that x = 3x - 8 and so 2x = 8 and x = 4. Hope that helps :)
6 0
3 years ago
Other questions:
  • How many 1/4 yard long pieces of pipe can be cut from two 1 yard long pieces of pipe?
    14·2 answers
  • In 2005, a Nevada silver mine exported 200 tons of silver. In 2008, as the silver supply became exhausted, it only exported 25 t
    7·1 answer
  • Hello can you please help me posted picture of question
    14·1 answer
  • White 15/45 in simplest form
    5·2 answers
  • A candy store called "Sugar" built a giant hollow sugar cube out of wood to hang above the entrance to their store. It took 54 f
    5·2 answers
  • F(x)=16^X<br> 1. F(x)=4 x/4<br> 2.f(x)=2^4x<br> 3. F(x)=2 x/4<br> 4. F(x)=4^4x
    15·1 answer
  • Triangle PQR is similar to triangle KLM. What is the value of x in inches?
    5·1 answer
  • Simplify: 7(-2x - 3) *<br> -14x - 21<br> -14x - 3<br><br> 14x - 21<br><br> 14x - 3
    6·1 answer
  • Verify whether the point (2,5) lies on 2x -y+1=0 or not
    8·1 answer
  • A hot air balloon travels 18miles in 3 hours. At this rate how many miles will the hot air balloon travel in 3/4hour?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!