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
vazorg [7]
3 years ago
9

Factor completely 4а^2 - 8а - 5

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
5 0

Answer:

(2a + 1)(2a - 5)

Step-by-step explanation:

Given

4a² - 8a - 5

Consider the factors of the product of the coefficient of the a² term and the constant term which sum to give the coefficient of the a- term

product = 4 × - 5 = - 20 and sum = - 8

The factors are + 2 and - 10

Use these factors to split the a- term

4a² + 2a - 10a - 5 ( factor the first/second and third/fourth terms )

= 2a(2a + 1) - 5(2a + 1) ← factor out (2a + 1) from each term

= (2a + 1)(2a - 5)

You might be interested in
Which irrational number can be added to pi to get a sum that is rational?
Fofino [41]
The irrational number that can be added to pi to get a rational sum is PI.
3 0
4 years ago
Read 2 more answers
Find the circumference of a circle with a radius of 8 inches round to the nearest 10th
Mkey [24]

Is the answer to your question 9?

7 0
3 years ago
Can you help me I will give you brainiest answer
Gemiola [76]
The first one is 20 and the second one is 19 and the third one is 25 and the fourth one is 15 and the fifth one is 11 and the sixth one is 28
5 0
2 years ago
Referring to the figure, what is the slope of the<br> line?
sweet [91]

Answer:

sorry i dont know, i just rlly need points

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A tortoise crawling at a rate of 0.1 mi/h passes a resting hare. The hare wants to rest another 30 min
pav-90 [236]

Answer:

The rabbit will run 264feet to get to the tortoise

Step-by-step explanation:

To solve this problem perfectly, we need to take note of the units and conversions involved.

The speed of the tortoise is 0.1 mi/hr

The speed of the hare is 5mi/hr

If the hare rests for another 30 minutes before he starts running the race, We are to get the distance covered by the tortoise under this 30 minutes.

The tortoise runs 0.1 miles in 1 hour

The tortoise will run x miles in 0.5 hours.

x = 0.5 X 0.1 =  0.05 miles.

Therefore, the distance covered by the Tortoise within 30 minutes is 0.05 miles.

The hare will have to run for 0.05 miles before he can catch up to the tortoise.

It is now unit conversion comes into play. We are converting the 0.05 miles to feet so we can get our final answer.

The answer in feet is 264 feet.

Therefore, the rabbit will run 264feet to get to the tortoise

3 0
3 years ago
Other questions:
  • What is the area of y?
    6·1 answer
  • Whats 3 2/5 times 3 1/3 in fraction form
    11·1 answer
  • The coordinates of point T are (0,4). The midpoint of ST is (1,-5). Find the coordinates of point S.
    5·1 answer
  • Help ASAP What's the remainder of 8,595 ÷ 24?
    6·1 answer
  • HELP ME :(
    11·1 answer
  • Please help me I will give 30 points
    10·2 answers
  • Determine the resulting polynomial:
    14·1 answer
  • 10 divided by <img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D" id="TexFormula1" title="\frac{1}{2}" alt="\frac{1}{2}" al
    10·2 answers
  • How many ridges would there be on $10 worth of quarters?
    5·2 answers
  • Solve for x: 6 &lt; 4x + 8 &lt; 14
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!