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
Alenkasestr [34]
3 years ago
13

gn="absmiddle" class="latex-formula">

What are the steps to solve by factoring?
Mathematics
2 answers:
katen-ka-za [31]3 years ago
5 0

Answer:

x = -5 or  x = -4

Step-by-step explanation:

Given equation is :

x²+9x+20 = 0

We have to solve it by factoring.

Step 1.  Split the middle term of given equation so that the sum of two term should be 9 and their product be 20.

x²+5x+4x+20 = 0

Step 2.  Making groups ang taking common terms.

x(x+5)+4(x+5) = 0

Step 3.  Taking (x+5) as common,we get

(x+5)(x+4) = 0

Step 4. Applying Zero-Product Property to above equation,we get

x+5 = 0 or x+4 = 0

x = -5 or  x = -4 which is the answer.


Hoochie [10]3 years ago
3 0

Answer:

We have been given an equation x^2+9x+20=0

We will factorize it by  middle term splitting.

Step 1: x^2+5x+4x+20=0

Taking common factors out by clubing first two terms ad last two terms

Step 2: x(x+5)+4(x+5)=0

Step 3: (x+4)(x+5)=0

Equating both above factors to zero as:

Step 4: (x+4)=0\Rightarrow x=-4

   And (x+5)=0\Rightarrow x=-5.

You might be interested in
Which algebraic rule describes the translation of ADEF to AD'E'F?
Marrrta [24]

Answer:

B: (x, y) --> (x + 4, y - 3)

Step-by-step explanation:

the shape DEF went to the right along the x axis wich <em>increased</em> x and then went down the y axis or <em>decreased </em>y to make D'E'F'

some good way to remember these translations and orders are...
 - x is first when plotting points, then y (x, y)
 - x increases going right, and decreases going left, as well as y increasing going up, then decreasing going down

BONUS FACT:
the symbol ( ' ) is called a prime when refering to transformations and geometry ((as in D' is pronounced D prime))

4 0
2 years ago
What is 0.5 repeating as a fraction in simplest form
Solnce55 [7]

Answer:

5/9

Step-by-step explanation:

Start be letting x = 0.555...

Our original equation is:

x = 0.555...

There is only one digit repeating, the 5, so we multiply both sides of that equation by 10 and write it above the original equation.

10x = 5.555...

   x = 0.555...

Now we subtract the second equation from the first equation as written above.

9x = 5

Divide both sides by 9.

x = 5/9

0.555... = 5/9

6 0
3 years ago
The function s(V) = Negative RootIndex 3 StartRoot uppercase V EndRoot describes the side length, in units, of a cube with a vol
aliya0001 [1]

Answer:

The Answer is B) s > 4

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is the slope of the line passing through the following points (-2,5) &amp; (1,-7)?
igor_vitrenko [27]

Answer:

-12/3

Step-by-step explanation:

The formula to get slope is m=y1-y2 and x1-x2

REMEMBER SLOPE IS Y/X NOT X/Y

7 0
2 years ago
Which of the following is the reciprocal of x2 – 2x – 8?
Ann [662]
Hi again

x² - 2x - 8
Factor
= (x + 2)(x -4)
Answer : A is the correct option.


If you wanna check if A is the right answer, I will solve it for you and it will you give you the exact answer which will be x² - 2x - 8
(x+2)(x-4)
Distribute
(x)(x) + (x)(-4)+(2)(x)+(2)(-4)
= x² - 4x + 2x - 8
= x² - 2x - 8
Here it is, we find the exam answer.

Thus, (x+2)(x-4) is the reciprocal of x² -2x - 8


I hope that's help !
6 0
3 years ago
Other questions:
  • stacy buys 3 cds in set for $29.98 .She saved $6.44 by buying the set instead of buying the individual cd's .If each cd costs th
    8·2 answers
  • The sum of 3 consecutive integers is 72. What are the integers?
    13·2 answers
  • I need help ASAP! Can someone please help me?
    11·1 answer
  • The vertex of this parabola is at (2,-4). When the y value is -3, the x-value is
    13·1 answer
  • A man who moves to a new city sees that there are two routes he could take to work. A neighbor who has lived there a long time t
    9·1 answer
  • Which table shows a negative correlation? A 2-row table with 6 columns. The first row is labeled x with entries 2, 5, 6, 7, 10,
    5·2 answers
  • Jen can run a mile in 8 minutes. Which is the most reasonable time for her to run a 10-km race: 1.6min, 5 min, 50 min, or 500 mi
    14·1 answer
  • I need help with these two questions
    15·1 answer
  • If f(x)= 2x + 8 and g (x) =x^3, what is (g^0 f) (0)
    11·1 answer
  • —330 + 450 need help !!!!!!!
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!