Sign In
Ask Question
Trace Green
Mathematics
6 July, 17:53
Show all work to solve
3x^2 - 5x - 2 = 0
+4
Answers (
1
)
Nico Tucker
6 July, 18:10
0
Factor and set each factor equal to zero.
x = 2, - 1/3
Explanation:
The first term is, 3x2 its coefficient is 3.
The middle term is, - 5x its coefficient is - 5.
The last term, "the constant", is - 2
Step-1 : Multiply the coefficient of the first term by the constant 3 • - 2 = - 6
Step-2 : Find two factors of - 6 whose sum equals the coefficient of the middle term, which is - 5.
-6 + 1 = - 5 That's it
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, - 6 and 1
3x2 - 6x + 1x - 2
Step-4 : Add up the first 2 terms, pulling out like factors:
3x • (x-2)
Add up the last 2 terms, pulling out common factors:
1 • (x-2)
Step-5 : Add up the four terms of step 4:
(3x+1) • (x-2)
Which is the desired factorization
Equation at the end of step 2:
(x - 2) • (3x + 1) = 0
Comment
Complaint
Link
Know the Answer?
Answer
Not Sure About the Answer?
Find an answer to your question 👍
“Show all work to solve 3x^2 - 5x - 2 = 0 ...”
in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
Sarah went to the grocery store and bought 4 loaves of bread and 1 gallon of milk for $12. the next week, sarah bought 2 loaves of bread and 3 gallons of milk for $13.50.
Answers (1)
Solve 110/5 using distributive properties
Answers (1)
Brody is paying back his father for an interest-free car loan. Brody owes his father $6000 dollars. The chart shows the cumulative total he has paid his father at the end of each month.
Answers (1)
A quadrilateral in the third quadrant is rotated 90° clockwise about the origin. Which quadrant will the transformed quadrilateral be in?
Answers (1)
Carol has 2 more pencils than Betty. Sue has 4 Less pencils than Carol. How many more pencils does Betty have than Sue
Answers (1)
New Questions in Mathematics
A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?
Answers (1)
I am very confused on how to figure out if y = 3/4x is proportional?
Answers (2)
Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?
Answers (2)
At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?
Answers (1)
Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.
Answers (1)
Home
»
Mathematics
» Show all work to solve 3x^2 - 5x - 2 = 0
Sign In
Sign Up
Forgot Password?