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
Talja [164]
3 years ago
11

Please help me quickly, the first person who answers gets brainlest

Mathematics
2 answers:
Vladimir [108]3 years ago
7 0

Answer:

(4x+3)^2

Step-by-step explanation:

To figure out if you chose the correct answer, work backwards. Take (16x + 3)(x+3) and distribute everything in.

Make arrows from the 16x to both parts in the second half. Then make arrows from the 3 to both parts of the second parenthesis. You now have to multiply these arrows. (This part is for visual learners.)

So, 16x * x     +      16x * 3     +      3 * x      +      3 * 3      =

16x(^2) + 48x  + 3x + 9

This answer would give you 16x (^2) +51x + 9.

So, that answer is not correct.

Let's test the other two, as well.

(4x + 3)(4x - 3)

4x * 4x     +      4x * -3     +      3 * 4x      +      3 * -3      =

16x(^2) + -12x  + 12x + -9 =

Combine like terms:

16x(^2) + -12x  + 12x + -9 =

the -12x + 12x give you 0. That leaves you with 16x(^2) -9. So, that's not the answer.

Let's test the last one.

(4x+3)^2

If you write this out, you will have (4x+3)(4x+3).

Let's solve this.

4x * 4x     +      4x * 3     +      3 * 4x      +      3 * 3      =

16x(^2) + 12x  + 12x + 9 =

Combine like terms:

16x(^2) + 12x  + 12x + 9 =

16x(^2) + 24x + 9

That is the answer we need!

goldenfox [79]3 years ago
6 0

16x^2+24x+9

Rewrite 16x^2+24x+9 as(4x)^2+2*4x*3+3^2

=(4x)^2+2*4x*3+3^2

Apply perfect square formula: (a+b)^2=a^2+2ab+b^2

a=4x b=3

Your answer is (4x+3)^2

Im postive about this you will get it right i promise

You might be interested in
Please help me with this question <br><br> image attached
Dmitry [639]

THE answer would be 38. letter C.

4 0
3 years ago
Joaquin bought a bookcase on sale for $120, which was two-thirds of the original price. What was the original price of the bookc
weqwewe [10]
180
Because 120 divided by 2 is 60.
And 120 + 60 is 180
7 0
3 years ago
Can someone help me with these
ira [324]
12 is a
13 is b
14 is d
15 is 1 217/1250
4 0
3 years ago
What factors of 20 are also factors of 50
spayn [35]
The easiest way to find the factors of a pair of numbers, is simply to write out the factors until you find the ones that they have in common. So in this case, these factors would be listed as follows:
20: 1,2,4,5,10,20
50: 1,2,5,10,25,50.
From looking at these numbers, we can therefore see that the common factors are: 1,2,5,10
7 0
3 years ago
Read 2 more answers
Please help with this problem. It's very confusing.
Eddi Din [679]

Answer:

9x

Step-by-step explanation:

)

8 0
3 years ago
Other questions:
  • If there are two real solutions to the equation x^2 + 4x + c = 0, which is a possible value of c?
    5·2 answers
  • Which sign makes this number sentence true? |78| __ |-222|
    14·2 answers
  • What is (-2) 3<br> (-2(34)
    15·1 answer
  • Last week Alexander was paod $53 for 7 hoirs of work.How much money does Alexander's job per hour
    8·1 answer
  • Please tell me if im correct or not
    11·2 answers
  • Probability is the
    9·1 answer
  • Remove all perfect squares from inside the square root.<br> \sqrt{63}= <br> 63<br> ​
    10·1 answer
  • The sides of a triangle measure 3 cm, 5 cm, and 7 cm. One of the angles is 120°. Which type of triangle is it?
    15·2 answers
  • A hippopotamus can stay under water for 15 minutes. A sea cow can stay under water y minutes.This is 11 minutes longer than one-
    11·1 answer
  • Convert to scientific notation.<br> 16,120
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!