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
Savatey [412]
3 years ago
7

Factor: (a+3)^2 -a(a+3)

Mathematics
2 answers:
lutik1710 [3]3 years ago
6 0

Answer:

3(a +3)

Step-by-step explanation:

(a+3)^2 -a(a+3)

FOIL

a^2 +3a+3a+9 -a(a+3)

Distribute

a^2 +3a +3a +9 -a^2 -3a

Combine like terms

3a +9

FACTOR out a+3

(a+3)( a+3 -a)

(a+3) (3)

3(a+3)

Andru [333]3 years ago
4 0

Answer:

3(a+3)

Step-by-step explanation:

Expand the first set of brackets first

(a+3)^2

A^2 + 3a + 3a +9

=A^2 + 6a + 9

Expand the second set of brackets

-a(a+3)

=-a^2 - 3a

Add both sets together

3a + 9

Factorise:

3(a+3)

You might be interested in
Consider the following equations and name the property of equality used to solve for the variable.
Anestetic [448]

Answer:

Subtraction property ; x = 3.25

Division property ; - 6

multiplication property ; - 125

Addition property ; 13

Step-by-step explanation:

A.)

x + 3.75 = 7

Using the subtraction property : subtract 3.75 from both sides

x + 3.75 - 3.75 = 7 - 3.75

x = 3.25

B. )

–3b = 18

According to the division property :

Divide both sides by - 3

-3b / - 3 = 18 / - 3

b = - 6

C.)

m/5 = - 25

Using the multiplication property :

m/5 * 5 = - 25 * 5

m = - 125

D.)

m – 4 = 9

Using the addition property :

Add 4 to both sides :

m - 4 + 4 = 9 + 4

m = 13

8 0
3 years ago
What is the median of the menu items in the plot below?​
DerKrebs [107]

Step-by-step explanation:

There are 13 numbers here:

30, 30, 31, 32, 42, 49, 58, 58, 67, 67, 69, 78, 90.

The median number is the 7th number, which is 58.

6 0
3 years ago
Read 2 more answers
What value of y will make this expression equal to 2.45?
MA_775_DIABLO [31]

Any value of y, except when y = -4.9, will make the expression equal to 2.45.

5 0
3 years ago
Read 2 more answers
What is the equation and how do you figure it out?
Marrrta [24]
The equation is y=2x-2
To find the x-value you take any two pairs of value such as (-2,-3) and (0,-2) and you just use y1-y2/x1-x2. And for y-value you just see when x is zero
6 0
3 years ago
the health inspector visits every 7 days and the fire inspector visits every 12 days what day will they both be there
Lesechka [4]
The 84th day since the greatest common multiple is 84.
5 0
3 years ago
Other questions:
  • Joy started with 2.75 gallons of milk. She used 1.5 pints to make mashed potatoes and another cup to make cookies. How much milk
    13·1 answer
  • Amanda has 72 baseball cards this is eight times as many cards as John has how many baseball cards does John have
    7·1 answer
  • X- 3y= 1<br> -3 - 3y= 15
    13·1 answer
  • At a baseball game, a vender sold a combined total of 104 sodas and hot dogs. the number of sodas sold was three times the numbe
    12·1 answer
  • An instructor in a college class recently gave an exam that was worth a total of 100 points. The instructor inadvertently made t
    8·1 answer
  • The product of -3 and t is greater than 11.
    11·1 answer
  • What is the area of this trapezoid?​
    11·2 answers
  • The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.954 grams and a standard devia
    8·1 answer
  • A car is 180 inches long. A truck is 75% longer than the car. How long is the truck?
    12·2 answers
  • One spring day, Landon noted the time of day and the temperature, in degrees Fahrenheit. His findings are as follows: At 6 a.m.,
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!