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
antiseptic1488 [7]
4 years ago
15

So im working with factoring by grouping and factoring trinomials by grouping in my algebra 2 class i need some help with a 6 qu

estions.
1. factor completely : 15 x^{2}-x-2
2. factor completely: 10xy-5y+18x-9
3.factor completely: 30 c^{2} - 20c^{2} -15c+10
4. what is the factored form of 2 x^{2} +20x+50
5.what is the factored form of 5 x^{2} +28x+15
6.what is the factored form of 4x^{2} -4x+1
Mathematics
1 answer:
n200080 [17]4 years ago
6 0
15^2-x-2 \\ \\ 225 - x - 2 \\ \\ 223 - x \\ \\ Answer: \fbox {223 - x}

----

10xy-5y+18x-9 \\ \\ 5y(2x-1)+9(2x - 1) \\ \\ (2x - 1)(5y + 9) \\ \\ Answer: \fbox {(2x-1)(5y+9)}

----

30c^2-20c^2-15c+10 \\ \\ 10c^2 - 15c + 10 \\ \\ Answer: 10c^2 - 15c + 10

----

2x^2 + 20x + 50 \\ \\ GCF = 2 \\ \\ 2 (\frac{2x^2}{2} +  \frac{20x}{2} +  \frac{50}{2} ) \\ \\ 2(x^2 + 10 + 25) \\ \\ 2(x^2 + 2(x)(5)+5^2) \\ \\ 2(x + 5)^2 \\ \\ Answer: 2(x + 5)^2

----

5x^2+28x+15 \\ \\ 5x^2 + 25x + 3x + 15 \\ \\ 5x(x + 5) + 3(x + 5) \\ \\ (x + 5)(5x + 3) \\ \\ Answer: \fbox {(x + 5)(5x + 3)}

----

4x^2-4x + 1 \\ \\ (2x)^2-2(2x)(1)+1^2 \\ \\ (2x - 1)^2 \\ \\ Answer: (2x - 1)^2

----

Hope this is what you need - considering I'm not the greatest at trinomials, but I have some characteristics of it. 
You might be interested in
A bolt has 6 1/2 turns per inch how many turns would be in 2 1/2 inches of threads
DerKrebs [107]

Answer:

famwfklawf'ajnkpfjnflasjfajlkfjlk/ajkljkljklasjkfjkajkjkfajkfjkj/fj/fsklafnwklasj'fawJFAKLfajfl;ajfafjafafafafaf

Step-by-step explanation:

4 0
3 years ago
Miles has just begun the process of filing his federal income tax return, and
Luba_88 [7]

Answer:

Schedule  A  Itemized Deductions

Step-by-step explanation:

7 0
3 years ago
Write the equation of the line that is perpendicular to y = -2/3 x +2 and goes through the point (-1, 4). Make sure your final a
wariber [46]

Given:

The equation of a line is

y=-\dfrac{2}{3}x+2          ...(i)

The perpendicular line passes through the point (-1,4).

To find:

The equation of the perpendicular line.

Solution:

The slope intercept form of a line is:

y=mx+b            ...(ii)

Where, m is the slope and b is the y-intercept.

On comparing (i) and (ii), we get

m=-\dfrac{2}{3}

Product of slopes of two perpendicular lines is -1.

Let the slope of perpendicular line is m_1.

m\times m_1=-1

-\dfrac{2}{3}\times m_1=-1

m_1=\dfrac{3}{2}

The slope of the perpendicular line is m_1=\dfrac{3}{2} and it passes through the point (-1,4). So, the equation of the line is:

y-y_1=m_1(x-x_1)

y-4=\dfrac{3}{2}(x-(-1))

y-4=\dfrac{3}{2}(x+1)

y-4=\dfrac{3}{2}x+\dfrac{3}{2}

Add 4 on both sides.

y-4+4=\dfrac{3}{2}x+\dfrac{3}{2}+4

y=\dfrac{3}{2}x+\dfrac{3+8}{2}

y=\dfrac{3}{2}x+\dfrac{11}{2}

Therefore, the equation of required line is y=\dfrac{3}{2}x+\dfrac{11}{2}.

7 0
3 years ago
How yall can help me out
Maslowich

Answer: (b)

Step-by-step explanation:

2√12 x 3√5 (numerator)

= (2x3)(√12x √5)

= 6√60

√30x √36

= √30 x 6

=6√30

Now,

6√60/6√30

We can cancel 6

So, it's √60/√30

= √60/30

= √ 2= 1.41 approx

Hope it helps!

7 0
4 years ago
Read 2 more answers
If Jason spends 2 2/3 hours more at the camp, he will complete 7 hours of camp counseling How many
aleksley [76]

Answer:

4 1/3

Step-by-step explanation:

Subtract to find the difference.

7 0
3 years ago
Read 2 more answers
Other questions:
  • How do you write the equation of a circle with the center (6,2) and radius r=8?
    6·2 answers
  • CALC!! Please help me. For which pair of functions f(x) and g(x) below will the limit as x goes to infinity of the product of f
    15·1 answer
  • f the line passing through the points (1, a) and (5, −2) is parallel to the line passing through the points (2, 8) and (−5, a +
    12·1 answer
  • Park View Apartments has 2 buildings. Each building has 3 floors. Each floor has
    13·1 answer
  • - Complete this sentence. 12 = 4 * 3 means that<br> 12 is<br> times as many as 4.
    11·1 answer
  • A rectangular field 50 meters in width and 120 meters in length is divided into two fields by a diagonal line. What is the lengt
    13·2 answers
  • Please help out with this Geometry problem !!!
    14·2 answers
  • What is -100 represented in exponents
    7·1 answer
  • how do i do <br><br> 6w cubed - w<br><br> i am so confused
    12·1 answer
  • 4- Evaluating Expressions
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!