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
A number is greater than 8. The same number is less than 10. The inequalities &gt; 8 and x &lt; 10 represent the situation, whic
katen-ka-za [31]

Answer:

There are infinite solutions because there is always another number between any two numbers,

Step-by-step explanation:

This is because in the given equation >8 and x < 10 we are not told of the unique numbers we are searching for be it a decimal or a larger number searching for a unit of 9. ie) 8.0009 or searching for specific 9's.

4 0
3 years ago
You spin the spinner, flip a coin, then spin the spinner again. Find the probability of the compound event. Write your answer as
Margaret [11]

Answer:

5/162

Step-by-step explanation:

There's a 5/9 chance that you spin an odd and a 1/2 chance you get heads and a 1/9 chance you get a 3 on the spinner multiply the fractions together and get 5/162.

8 0
3 years ago
Use the function f(x) to answer the questions.
fiasKO [112]

Answer:

Below in bold.

Step-by-step explanation:

A. −16x2 + 24x + 16 = 0

-8(2x2 - 3x - 2) = 0

-8(2x + 1 )(x - 2) = 0

x = -0.5, 2.

So the x-intercepts are (-0/5, 0) and (2, 0).

B.  As the leading coefficients is negative (-16) the vertex of the graph will be a Maximum.

To find its coordinates we convert the function to vertex form:

f(x) =  −16x2 + 24x + 16

=  -16(x^2 - 1.5x) + 16

Completing the square on  contents of the parentheses:

= -16 [(x - 0.75)^2  - 0.75^2] + 16

= -16(x - 0.75)^2  - 16 * -0.75^2 + 16

= -16(x - 0.75)^2 + 9 + 16

= -16(x - 0.75)^2 + 25.

So the coordinates of the vertex are (0.75, 25)

3 0
3 years ago
Which of the following verifies that triangle YXZ is similar to triangle QPR?
sweet [91]

Answer:

AA postulate

Step-by-step explanation:

Because both the angle are identical?

5 0
3 years ago
PLZZZZ HELP MEEE WIL GIVE BRAINLEST
cupoosta [38]

Answer:

3 is your answer im pretty sure:)))

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • I need help with 8a please
    14·1 answer
  • An inground rectangular pool has a concrete pathway surrounding the pool if the pool is 16' x 32' in the entire area of the pool
    6·1 answer
  • If a job can be completed in 4 hr, then the rate of work is __ of the job per hour.
    12·2 answers
  • Reduce 6 over 12 to the lowest terms​
    5·2 answers
  • 18 p <br>please help me!
    14·1 answer
  • What is the equation for (7,-1),(0,20)
    5·1 answer
  • 1/8” + 4 7/8” whats the awncer?
    14·1 answer
  • Help(T_T)<br> "Give 7.897 correct to 2 decimal places"
    14·1 answer
  • Ñame the types of angles shown. Check all that apply.
    11·1 answer
  • Really easy, Really need help!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!