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
hodyreva [135]
3 years ago
13

Use the grouping method to factor the polynomial below completely. x3 - 3x2 + 5x - 15

Mathematics
2 answers:
FromTheMoon [43]3 years ago
8 0
X^3 - 3x^2 + 5x - 15
x^2(x-3) +5(x-3)
(x^2 + 5)(x - 3) <==Answer
11Alexandr11 [23.1K]3 years ago
4 0

Answer:

(x^2+5)*(x-3)

Step-by-step explanation:

In grouping method factoring, you must have to split the middle term in a way that the product of two terms in middle must be equal to the product of two terms at the edges of equation. Remember you have to consider the resultant signs as well as the magnitude of both products.

Now in the case given above,

x^3-3x^2+5x-15

the result is -15x^3

Note that the magnitude is 15x^3 and sign is '-' for both products.

Now taking out the common terms, equation becomes;

x^2(x-3)+5(x-3)

Taking out (x-3) as common, now the factorized version we have is:

(x-3)(x^2+5)

You might be interested in
If a=6 and b=5 what is the value of (A2-b2)2
Elena-2011 [213]
(a^2-b^2)^2

(36-25)^2

11^2

121
4 0
4 years ago
Read 2 more answers
An artist is cutting pieces of ribbon to
Ann [662]

Answer:

5 inches

Step-by-step explanation:

4 0
4 years ago
What is the area of the rhombus?
Delicious77 [7]

Answer:  24 square units

Explanation: The diagonals are 4+4 = 8 and 3+3 = 6 units long. Multiply the diagonals to get 8*6 = 48. Then divide this in half to get 48/2 = 24.

An alternative is to find the area of one smallest triangle, and then multiply that by 4 to get the total area of the rhombus. You should find the area of one smallest triangle to be 0.5*base*height = 0.5*4*3 = 6, which quadruples to 24.

3 0
3 years ago
PLEASE HELP ASAP WILL GIVE BRAINLIEST + 99 POINTS!! What is the area of this figure?
NeX [460]

Answer:

a= 81m^2

Step-by-step explanation:

we know the top triangle: the base is 9

a = 1/2(bh)

a = 1/2 (9 x 8)

a = 1/2 (72)

a = 36

the parallelogram at the bottom has base 9 and height 5

a = bh

a = 9 x 5

a = 45

add them together 36 + 45 = 81

7 0
3 years ago
Read 2 more answers
I need help on this question plz
PIT_PIT [208]
In the third equation, the left side has ab.
You are solving for a, so you need a alone.
Dividing ab by b gives you a alone.

Answer: The third choice.
7 0
3 years ago
Other questions:
  • Which expression is equivalent to 1/5m − 20
    11·1 answer
  • Hi can someone please help me with this question? thank you
    6·1 answer
  • Which number is a multiple of 7?<br><br> A) 21<br> B) 29<br> C) 27<br> D) 23
    11·1 answer
  • How to determine if an equation is a function?
    7·1 answer
  • What makes -1.3 a non integer
    8·2 answers
  • Cookies are on sale! Today each cookie costs
    14·1 answer
  • Quadrilateral ABCD is inscribed in a circle. Find the measure of angle D. Show your work.
    13·1 answer
  • Number 9 -_- like what is this
    11·2 answers
  • -11 + x = 7x - 5. PLEASE HELPP WHAT DISE X EQUAL
    15·2 answers
  • Someone, please help I'm confused.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!