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
tamaranim1 [39]
3 years ago
10

Expand the following: a) x(x + 2) b) x(2x - 5) c) 2x(3x + 4) d) 6x(x - 2)

Mathematics
1 answer:
TEA [102]3 years ago
4 0

Answer:

<h2>a. \:  {x}^{2}  + 2</h2>

<h2> </h2><h2>b. \: 2 {x}^{2}  - 5x</h2><h2> </h2><h2>c. \: 6 {x}^{2}  + 8x</h2><h3> </h3><h3>d. \: 6 {x}^{2}  - 12x</h3>

solution,

a. \: x(x + 2) \\  \:  \:  = x \times x + 2 \times x \\  \:  \:  =  {x}^{2}  + 2x

b . \: x(2x - 5) \\  \:  = x \times 2x - x \times 5 \\  \:  \:  = 2 {x}^{2}  - 5x

c. \: 2x(3x + 4) \\  \:  = 2x \times 3x + 2x \times 4 \\  \:  \:  = 6 {x}^{2}  + 8x

d. \: 6x(x - 2) \\  \:  \:  = 6x \times x  - 6x \times 2 \\  \:  \:  = 6 {x}^{2}  - 12x

<h2> </h2><h2 />

Hope this helps...

Good luck on your assignment..

You might be interested in
Find the exact value of sec theta if csc theta = -4/3 and the terminal side of theta lies in quadrant III
GREYUIT [131]

Answer:

-4 sqrt(7)/7

Step-by-step explanation:

csc theta = -4/3

csc theta = hypotenuse / opposite side

hypotenuse = 4  

opposite  = 3

Using the pythagorean theorem

a^2 + b^2 = c^2

3^2 + b^2 = 4^2

9+b^2 = 16

b^2 = 16-9

b^2 = 7

Taking the square root

sqrt(b^2) = sqrt(7)

b = sqrt(7)

We are in the third quadrant so only tan  and cot are positive

that means the x and y values are "negative"  so a = -3 and b = - sqrt(7)

sec theta = hypotenuse / adjacent

                = 4/ - sqrt(7)

rationalizing  

                   -4 sqrt(7)/ sqrt(7)* sqrt(7)

                = -4 sqrt(7)/7

           

3 0
3 years ago
PLZ HELP !! ABC OR D
kompoz [17]

Answer:

A

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
One evening, Mr. Smith, Sam, and Sydney went to see the Myrtle Beach Pelicans’ Game. They each bought a ticket and a hat that co
o-na [289]

Answer:

You can't answer this question without knowing the total amount of money they all had in total.

3 0
3 years ago
Two percent of the customers of a store buy cigars. Half of the customers who buy cigars buy beer. 25 percent who buy beer buy c
enyata [817]

Answer:

0.95

Step-by-step explanation:

The computation of the probability that a customer neither buys beer nor buys cigars is given below;

Given that, the probabilities are

The customers who purchased cigars be 0.02

The customers who purchased cigars + beer 0.50

And, the customers who purchased beer + cigars be 0.25

Now the probabilities where the customer purchased both

= 0.05 × 0.02

= 0.10

The probability where the customer purchased beer is

= 0.01 ÷ 0.25

= 0.04

Now the probability where a customer neither buys beer nor buys cigars is

= 1 - 0.02 + 0.04 - 0.01

= 0.95

4 0
3 years ago
Mr. Smith borrows $9000.00 from the bank at 6% per annum simple interest. . The loan is to be repaid in 4 years. What will be th
bezimeni [28]

Answer:

21323

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Which statement could the expression n + 1 represent?
    13·2 answers
  • Which of the binomials below is a factor of this trinomial
    6·1 answer
  • I have 50 dollars and i'm gambling on a series of coin flips. what's the probaility that i will run out of money
    5·2 answers
  • Find the value of x.<br> (x+16)<br> (4x-5)<br><br> x = 5<br> X = 34<br> x = 16<br> X= 7
    12·1 answer
  • It is known that:the pair of variables x=5, y=7 is the solution to the equation ax–2y=1. Find the coefficient a.
    14·2 answers
  • Find the area of the polygon
    6·1 answer
  • I need help. This is due today
    13·1 answer
  • What is 0.313 as a fraction and a percent
    6·2 answers
  • A number is chosen at random from 1 to 10. Find the probability of selecting a 9 or smaller.
    11·2 answers
  • How would you know if a polynomial is prime?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!