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
julia-pushkina [17]
3 years ago
9

What are the real zeros of the function g(x) = x3 + 2x2 − x − 2?

Mathematics
1 answer:
Nat2105 [25]3 years ago
4 0
Upon a slight rearrangement this problem gets a lot simpler to see.

x^3-x+2x^2-2=0  now factor 1st and 2nd pair of terms...

x(x^2-1)+2(x^2-1)=0

(x+2)(x^2-1)=0  now the second factor is a "difference of square" of the form:

(a^2-b^2) which always factors to (a+b)(a-b), in this case:

(x+2)(x+1)(x-1)=0

So g(x) has three real zero when x={-2, -1, 1}
You might be interested in
At fairvie middle school 75 band members need to raise a total of 8250 for a trip. So far they have raised 3120. How much money
galina1969 [7]
$8250 - $3120 = $5130

$5130/75 = $68.40

Each band member must raise $68.40
8 0
3 years ago
Please zoom in before you start solving because there are tricks in here. What is the answer?
blondinia [14]
45 ÷ 3 = 15
21 ÷ 3 = 7
12 ÷ 3 = 4

(4 + 15) x 7 = 133

OR if you’re using bedmas/pedmas

4 + (15 x 7) = 109
7 0
3 years ago
Line z has a slope of 2.5 and goes through point (4, 13). Which equation best represents line z?​
Rus_ich [418]

Answer:

y - 13 = (5/2)(x - 4)

Step-by-step explanation:

Here we know the slope and one point on the line.  Use the point-slope formula:

y - k = m(x - h).

Substituting 13 for k, 4 for x and 2.5 for m, we get:

y - 13 = (5/2)(x - 4)\

7 0
3 years ago
7. Calculate the volume of each item. (11.2)
Nana76 [90]
Formula for volume = length x height x breadth

7a) 13.5 x 3.5 x 11.5 = 543.375

7b) 24 x 10 x 30.5 = 7320
8 0
3 years ago
PLEASE PLEASE HELP AND PLEASE DON'T GUESS AND SHOW YOUR WORK THANK YOU!!!!!!!!!
FinnZ [79.3K]
Would it be distribution were you multiply the three in? -3(b-7) -3*b and -3*-7 where your answer would be -3b+21
4 0
3 years ago
Read 2 more answers
Other questions:
  • Tickets to a movie cost $7.25 for adults and $5.50 for students. a group of friends purchased 8 tickets for $52.75. how many adu
    11·1 answer
  • Please someone help
    11·1 answer
  • Plz help me have to turn this in today it 5:57
    14·1 answer
  • Write a word phrase for c – 9.1. 9.1 less than a number a number subtracted from 9.1 a number plus 9.1 9.1 minus a number
    5·2 answers
  • Help with number 26 please??
    11·1 answer
  • (a) Suppose you have 9 gold coins that look identical, but you also know one (and only one) of them is counterfeit. The counterf
    14·1 answer
  • Three inches of snow fell on Monday and 5 inches fell on Wednesday. Which number is the additive inverse of the amount of snow t
    11·1 answer
  • Which choice is equivalent to the product below for acceptable values of x?<br> √x+3. fx-3
    7·1 answer
  • Find the volume of the cone
    9·1 answer
  • HELPPP EASY MATH IM IN 5 GRADE
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!