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
Anarel [89]
3 years ago
8

What is the product of (3x-9) and 6x↑2-2x+5 Write your answer in standard form.

Mathematics
1 answer:
klio [65]3 years ago
3 0

Answer:

a. 18x^3 -60x^2 + 33x - 45

b. No

Step-by-step explanation:

Given:

(3x-9) and 6x^2-2x+5

=> the production of them is:

(3x-9)(6x^2-2x+5) , we will use distributive law to solve this To do that. we first multiply  6x^2-2x+5 by 3x then by -9. This is done as follows

= 3x (6x^2-2x+5) - 9(6x^2-2x+5)  = (3x * 6x^2-3x * 2x+3x *5) - (9* 6x^2-9* 2x+9* 5)\\\\= (18x^3 -6x^2+ 15x) - (54x^2 - 18x +45)

Then Open both brackets

= 18x^3 -6x^2+ 15x -54x^2 + 18x -45

After that, we group the same terms

= 18x^3 -(6x^2 +54x^2)+ (15x  + 18x) -45

= 18x^3 -60x^2 + 33x - 45

(b) Is the product of (3x-9) and  6x^2-2x+5  equal to the product of (9x-3) and 6x^2-2x+5

No, let find the product of (9x-3) and 6x^2-2x+5 , we will use distributive law to solve this as the above example.

= (9x-3)(6x^2-2x+5)

= 9x (6x^2-2x+5) - 3(6x^2-2x+5)

=(9x * 6x^2 - 9x * 2x + 9x *5) - (3* 6x^2 - 3 * 2x + 3* 5)

= (54x^3  - 18x^2+ 45x) - (18x^2 - 6x +15)

After that, we open the bracket to find the same terms

= 54x^3  - 18x^2+ 45x -18x^2 + 6x -15

= 54x^3  - 18x^2 -18x^2 + 45x  + 6x -15

= 54x^3  - 36x^2 + 51x  -15  

As you can see 54x^3  - 36x^2 + 51x  -15   ≠18x^3 -60x^2 + 33x - 45

Hope it will find you well.

You might be interested in
Write the equation in standard form.<br><br> 3x−9=7y
Ket [755]
In standard form the answer will be if you go by (Ax+by=c )then I must say it's 3x-7y=9
6 0
3 years ago
NEED HELP ASAP
azamat

Answer:

2 + m- 1 + m

Step-by-step explanation:

3m +1 -m

Combine like terms

3m-m +1

2m +1

We can split the m's

m+m +1

And we can rewrite 1 as 2-1

m+m+2-1

m+2+m-1

Rearranging the order

8 0
3 years ago
Read 2 more answers
3. What is the slope of the graph shown below?
konstantin123 [22]

Answer:

The slope is -2 and initial value is -1

5 0
3 years ago
Can u help please.....
d1i1m1o1n [39]

Benito drew a line with a slope of 3

8 0
3 years ago
Read 2 more answers
Answer for brainliest
Lynna [10]

Answer:

2, 18, 56.54

Step-by-step explanation:

hope this helped!

3 0
2 years ago
Other questions:
  • Can someone answer this question please?
    15·2 answers
  • △ABC is a right isosceles triangle, the centers of two arcs are the midpoint of AB
    9·1 answer
  • Are you dumb or stupid, because I see both
    7·2 answers
  • Which expression is equivalent to -18a^-2b^5/-12a^-4b^-6?
    5·2 answers
  • PLEASE HELP!!! Will give Brainliest to whoever does this correctly and a five star rating
    10·1 answer
  • The martins swimming pool is a square and is in the center of a square plot that is 33 meters on a side. They have 1025 square m
    9·1 answer
  • Help please please please I will mark you as brainlist!
    11·2 answers
  • Helppppp<br><br> !NO LINKS, NO FILES!<br><br> please :)
    10·1 answer
  • PLEASE HELP!! WILL MARK BRAINLIEST IF RIGHT!!!
    5·1 answer
  • The measure of an angle is 133°. What is the measure of its supplementary angle?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!