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
Pavlova-9 [17]
3 years ago
11

What is the factored form of the expression 9x2 + 6x + 1?

Mathematics
1 answer:
DanielleElmas [232]3 years ago
4 0

Answer:

(3x + 1)²

Step-by-step explanation:

Given

9x² + 6x + 1 ← is a perfect square of the form

(ax + b)² = a²x² + 2abx +  b²

Compare like terms to find a and b

a²x² = 9x² ⇒ a² = 9 ⇒ a = \sqrt{9} = 3

b² = 1 ⇒ b = \sqrt{1} = 1

and 2ab = 2 × 3 × 1 = 6

Thus

9x² + 6x + 1 = (3x + 1)²

You might be interested in
Which choice is equivalent to the product below?
Igoryamba
The answer should be
C
7 0
3 years ago
Determine if (-1,9) and (-2,6) are solutions to the system of equations: x + y = 8 x2 + y = 10 A) Both are solutions B) Neither
Dahasolnce [82]

Answer:

D) Only (-1,9) is a solution.

Step-by-step explanation:

x+y =8

x^2 + y = 10

Lets check the first point (-1,9)

Put in x =-1 y =9

x+y =8

-1+9 = 8

8 =8

This works

x^2 + y = 10

(-1)^2 +9 =10

1+9 = 10

10 = 10

This works

Lets check the second point (-2,6)

Put in x =-2 y =6

x+y =8

-2+6 = 8

4=8

This  does not work

We can stop now.  (-2,6) cannot be a solution

7 0
3 years ago
Write parametric equations of the line through the points (7,1,-5) and (3,4,-2). please use the first point as your base-point w
Roman55 [17]

Given:

A line through the points (7,1,-5) and (3,4,-2).

To find:

The parametric equations of the line.

Solution:

Direction vector for the points (7,1,-5) and (3,4,-2) is

\vec {v}=\left

\vec {v}=\left

\vec {v}=\left

Now, the perimetric equations for initial point (x_0,y_0,z_0) with direction vector \vec{v}=\left, are

x=x_0+at

y=y_0+bt

z=z_0+ct

The initial point is (7,1,-5) and direction vector is \vec {v}=\left. So the perimetric equations are

x=(7)+(-4)t

x=7-4t

Similarly,

y=1+3t

z=-5+3t

Therefore, the required perimetric equations are x=7-4t, y=1+3t and z=-5+3t.

5 0
3 years ago
Ming plays video games online.
Vlad1618 [11]
Ming needs to play for 15 hours to get 500 points. They gave him 200 for signing up, so 500-200=300 more points needed. 300 divided by 20= 15 more hours.
7 0
3 years ago
Read 2 more answers
9 divided by 234 <br> Breakdown
Hunter-Best [27]

Answer:

0.0384615385

Step-by-step explanation:

look at picture

7 0
3 years ago
Other questions:
  • In parallelogram MNOP PK = 5x and KN = x2-14 what is PN?
    14·1 answer
  • 590 divided by 50779
    12·1 answer
  • Chris sale has won 60% of the games he pitched. If he pitched 35 games how many did he win!
    14·2 answers
  • Please help me i give brainliest !!!!!!!
    14·1 answer
  • 4. Calculate using the order of operations.<br>a) (+30) / (-10) + (-20) / (-1)​
    14·1 answer
  • As part of a promotion for a new type of cracker, free trial samples are offered to shoppers in a local supermarket. The probabi
    9·1 answer
  • Your English teacher had decided to randomly assign poems for the class to read. The syllabus includes 2 poems by Shakespeare, 5
    10·1 answer
  • Question 20
    9·1 answer
  • Can someone please help me
    14·1 answer
  • Whoever gets this correct first gets brainlest!!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!