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
Vinil7 [7]
3 years ago
10

Multiply: (5x − 2)(4x2 − 3x − 2)

Mathematics
2 answers:
Nataliya [291]3 years ago
8 0

Answer:

20 x^3 - 23 x^2 - 4 x + 4

Step-by-step explanation:

(5x-2)(4x^2-3x-2)\\

Here we use distributive law and distribute 5x and -2 over two brackets

5x(4x^2-3x-2)-2(4x^2-3x-2)\\

Now we are goinf to multiply 5x and 2 with each term inside the brackets

(5x*4x^2-5x*3x-5x*2)-(2*4x^2-2*3x-2*2)

Simplify

20x^3-15x^2-10x- (8x^2-6x-4)

20x^3-15x^2-10x- 8x^2+6x+4

bringing terms with same degree together and simplifying we get

20x^3-15x^2-8x^2-10x+6x+4

20x^3-23x^2-4x+4

Answer

Alex Ar [27]3 years ago
3 0
Hello there!

(5x - 2)(4x² - 3x - 2)

Use the distributive property

=(5x)(4x²) + (5x)(-3x) + (5x)(-2) + (-2)(4x²) + (-2)(-3x)² + (-2)(-2)

= 20x³ - 15x² - 10x - 8x² + 6x + 4

= 20x³ - 23x² -4x + 4


As always, it is my pleasure to help students like you. Let me know if you have any questions.
You might be interested in
. An urn contains 6 blue and 5 red marbles. Reach in and grab one marble and then another (without replacing the first one). Wha
natima [27]

Probability that you have chosen 2 red marbles is 3/11

<h2>How to solve?</h2>

Total number of marbles = 6 + 5 = 11

Number of red marbles = 6

Number of blue marbles = 5

Important Points:

1. Replacement is not allowed

2. Blue is followed by Red

Probability has been introduced in Maths to predict how likely events are to happen. The meaning of probability is basically the extent to which something is likely to happen.

Probability of Blue first = 5/11

Probability of Red second = 6/10 (one marble is already taken out)

Probability = 5/11 * 6/10 = 3/11

Learn more about Probability:

brainly.com/question/4313883

#SPJ4

8 0
2 years ago
If pie-0 =3.14159265359 what is pie time 160=
Zepler [3.9K]

Answer:

Hey!

To start this problem, we'll most likely need a calculator. Handling \pi can get a little messy, and tricky.

(also note that "pie" is a food, the mathematical term \pi, is pronounced "pie", but spelled "pi.")

Anyway, multiplying 3.14159265359..... (\pi) \cdot 160 = 502.654824574...... going on and on.

In general, these types of problems are better for a calculator if you want an exact answer. Otherwise, just resort to estimation. \pi is pretty close to 3.14.

160 \cdot 3.14 = 502.4, which is decently close to our other answer.

Hope this helps!

- sahkfam

7 0
3 years ago
Read 2 more answers
Subtract these polynomials. (x2 + 5x + 2) – (5x2 – x – 2) =
UNO [17]

Answer: 4(x-x2)

Step-by-step explanation: please mark brailyest

3 0
2 years ago
The box-and-whisker plot represents the number of points scored by teams in a soccer league last year.
Yuki888 [10]
C because a is incorrect and so is b and d
3 0
3 years ago
The function f(x) = −x2 − 9x + 10 shows the relationship between the vertical distance of a diver from a pool's surface f(x), in
mote1985 [20]

Answer:

Zeros of a function: x = 1 and x = -10

Step-by-step explanation:

A zero of a function is the value of x when f(x) = 0. In other words it is the intersect point between x and y=f(x), when y =0.

First we need to make f(x)=0, so we would have: -x^{2}-9x+10=0.

If we factorize this quadratic function, we would have: (x+10)(x-1)=0

So we get x = -10 and x = 1.

  • x = 1 means that the diver hits the water 1 foot away horizontally from the board.
  • x=-10 means the diver hits the water 10 feet behind the diving board.

Hope it helps!

4 0
3 years ago
Other questions:
  • FIND ST OF THIS CIRCLE.
    6·1 answer
  • Which is the graph of the given function?
    11·1 answer
  • PLS HELP ME I WILL GUVE YOU BRAINLIST AND A THANK YOU!!!!!
    10·2 answers
  • Please help me with this problem​
    12·1 answer
  • For what value of k, -4 is a zero of polynomial x2-x-(2k+2)?
    10·1 answer
  • The two colons are for the answer
    12·2 answers
  • A cylinder has a base radius of 9m and a height of 14m. What is its volume in cubic m, to the nearest tenths place?
    6·1 answer
  • Please help me I am stuck (questions are in the picture, and the marked-off section does not have to be done).
    6·1 answer
  • Solve the following system of equations 7x - 3y = 11 and 2x + 6y = 10​
    15·2 answers
  • Kylie is selling gift bags and wrapping paper for a school fundraiser. Mrs. Jones orders 4 gift bags and 3 rolls of wrapping pap
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!