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
Alexxx [7]
3 years ago
9

Please answer to those (a+2)(a+2) (b+7)(b+7) (c-3)(c-3)

Mathematics
2 answers:
oksano4ka [1.4K]3 years ago
5 0

Answer:   1. a^2 + 4a + 4

                2. b^2 + 14b + 14

                3. c^2 -6c + 9



vlada-n [284]3 years ago
3 0

Answer: a² + 4a + 4

<u>Step-by-step explanation:</u>

   (a + 2)(a + 2)

= a(a + 2) +2(a + 2)

= a² + 2a + 2a + 4

= a² + 4a + 4

Answer: b² + 14b + 49

<u>Step-by-step explanation:</u>

   (b + 7)(b + 7)

= b(b + 7) +7(b + 7)

= b² + 7b + 7b + 49

= b² + 14b + 49

Answer: c² - 6c + 9

<u>Step-by-step explanation:</u>

   (c - 3)(c - 3)

= c(c - 3) -3(c - 3)

= c² - 3c - 3c + 9

= c² - 6c + 9


SHORTCUT: These are perfect squares. There is a formula for multiplying perfect squares:  (a ± b)² = a² + 2ab + b²

(a + 2)² = a² + 2(a)(2) + (2)²

            = a² + 4a + 4

(b + 7)² = b² + 2(b)(7) + (7)²

           = b² + 14b + 49

(c - 3)² = c² + 2(c)(-3) + (-3)²

           = c² - 6c + 9

You might be interested in
What is the other answer for 9 + 10 ?​
xeze [42]

Answer:

19? 21?

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A grocer is stocking cans of beans on his shelf for a 7-day week and will
Ugo [173]

Answer:

  • 22

Step-by-step explanation:

<u>Given inequality:</u>

  • n ≥ 4d

<u>As the number of days is 7, the number of cans is:</u>

  • n ≥ 4*7 = 28

<u>From the options, the last one is not reasonable: </u>

  • 22 because it is less than 28
5 0
3 years ago
Ur. What is Akiko's unit rate in miles per hour?
artcher [175]

Answer:

Step-by-step explanation:

pic do you have

7 0
3 years ago
What is the difference between 0.0032 and 0.32? and which one is greater?
mariarad [96]
.0032 = 0.32%
.32 = 32%
.32 is 100 times greater than .0032, therefore, 0.32 is greater
8 0
3 years ago
Read 2 more answers
Math Activity #2<br>The number of the day is 178.25<br>• Write this number in word form:​
Nady [450]

Answer:

one hundred seventy eight point two five.

5 0
3 years ago
Read 2 more answers
Other questions:
  • The probability of rolling a number less than 3 on a number cube is 2/6. Jennifer rolls a number cube 60 times. How many times s
    15·1 answer
  • What’s grader -77 or -54
    11·2 answers
  • There are 4 elephants in the preserve. Each elephant eats 2 1/4tons of vegetation in a week.
    6·2 answers
  • A movie theater is located on a map of a city represented by a coordinate plane. The location of the movie theater is at (−4, 2)
    8·1 answer
  • How many lines of symmetry does the letter r have
    12·2 answers
  • Which graph shows the solution to this system of equations?
    8·1 answer
  • I need the answer <br><br> Ushshsbshfhd
    15·2 answers
  • The graph shows the system of which two equations?<br> Watch the intervals.
    14·2 answers
  • Due in 4 minutes Need help ASAP
    6·1 answer
  • I need help badly if you can help thank you very much
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!