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
Helen [10]
3 years ago
15

Which expression shows the correct multiplication of the following polynomilas? 3x(6x^2-3x+7)

Mathematics
1 answer:
snow_tiger [21]3 years ago
8 0

Answer: 18x^3-9x^2+21x

Solution:

3x(6x^2-3x+7)=

Applying the distributive property in the multiplication to eliminate the parentheses:

(3x)(6x^2)+(3x)(-3x)+(3x)(7)=

(3*6)x^(1+2)+3*(-3)x^(1+1)+(3*7)x=

18x^3-9x^2+21x

You might be interested in
What is the x value such that y =15 - 3x and y = 0? Please explain how you got this answer.
ICE Princess25 [194]

Answer:

x=5

Step-by-step explanation:

So how i came about to get this answer, was

y=15-3x

y=15-3(5)

y=15-15

y=0

I found five by testing out different numbers for x such as 1 2 3 4, but when i got to five, that was where i got the answer, as shown above.

<u>Do</u><u> </u><u>not</u><u> </u><u>forget</u><u> </u><u>about</u><u> </u>PEMDAS

3 0
3 years ago
Express the area A of a right triangle as a function of the height h if the base of the triangle is twice it's height
borishaifa [10]
Base = 2 x height (b = 2h)
Area = 1/2 x base x height = 1/2 x 2h x h = h x h = h^2
8 0
3 years ago
help Bob divide his water plants for the outer four aquariums. Insert images of the plant in the space below to show how you can
dexar [7]

Answer:

The Answer is 4.5 or 4 1/2

Step-by-step explanation:

3 0
3 years ago
5x = 40 what does the x going to equal
storchak [24]

start by diving 5 from each side so you are lrft with x on the left side, 40/5=8. now our equation is x=8 and that's the answer!

8 0
2 years ago
Read 2 more answers
S is the midpoint of RT. If RS = 7x-4 and ST = 5x+10, what is ST
Natali [406]

Answer: 45

Step-by-step explanation:

RS=ST\\\\7x-4=5x+10\\\\2x-4=10\\\\2x=14\\\\x=7\\\\\implies ST=5(7)+10=45

7 0
11 months ago
Other questions:
  • A square of side length 2 is inscribed in circle o. what is the area of circle o?
    13·1 answer
  • Vlad spent 20 minutes on his homework and then completely solved x math problems that took 2 minutes to complete. What is the eq
    6·1 answer
  • What is the length of leg s of the triangle below ?
    10·2 answers
  • A carpenter charges a flat fee of $150 plus $45 per hour. Which table represents this situation?
    12·2 answers
  • Which point does not lie on the circle centered at (3, 2) with radius 5?
    6·1 answer
  • What is one factor of 2x^2-32y^2
    8·1 answer
  • Subtract. Fill in the missing numbers. 11-4=? 4=3+1 So, 11-4=
    10·1 answer
  • What is the quotient of 7035/15
    7·2 answers
  • 2) Find the measure of angle b
    10·1 answer
  • How to find the indicated angle of a triangle
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!