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Airida [17]
3 years ago
6

Factor x 2 + xy - 2x - 2y. (x + 2)(x - y) (x + y)(x - 2) (x - y)(x + 2)

Mathematics
2 answers:
Y_Kistochka [10]3 years ago
4 0
X² + xy - 2x - 2y
The first thing would be to break the polynomial up into pairs.
(x² + xy) + (-2x -2y)
Then you can factor them individually.
(x² + xy)
Both numbers have x in common, so you can factor it out and get
x(x + y)
Then you factor the other pair,
(-2x -2y)
Both numbers have -2 in them, so you can factor it out and get
-2(x + y)
Now your two pairs are
[x (x + y)] and [-2 (x + y)]
Notice that the two terms in parentheses are the same, so you can get rid of one and combine the two outside terms to get a final answer of
(x - 2)(x + y)
Art [367]3 years ago
4 0

Answer:

Your answer is (x+y)(x-2)

Step-by-step explanation:

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Solve for the roots in simplest form using the quadratic formula:<br> 4x2 + 4x = -5
weqwewe [10]

Answer:

Step-by-step explanation:

Move all terms to one side

4x^2 + 4x + 5 = 0

Plug into quadratic formula

x = (-4 <u>+</u> \sqrt{16 - 4(4)(5)}) / 2(4)

  = (-4 <u>+</u> \sqrt{-64})/8

At this point, there are no real answers. The roots to this equation are complex.

x = (-4 <u>+</u> 8i)/8

  = (-1 <u>+</u> 2i)/2

6 0
3 years ago
HELPPPPP !!!
kifflom [539]

Answer:

(A) the subtraction property of equality

Step-by-step explanation:

Given

The steps in the question

Require

Justify step 2 to 3

Write out step 2:

-4x+9 = 2x+10

Apply subtraction property by subtracting 2x from both sides

-4x-2x+9 = 2x-2x+10

-6x+9 = 10

Notice that the above equation is represented in step 3.

<em>Hence, option A answers the question.</em>

7 0
3 years ago
Read 2 more answers
Seca
DaniilM [7]
You should give more points depending on the hard Answers..
7 0
3 years ago
X^2-10x+8=0 by completing the square
OverLord2011 [107]
When completing the square <span>x=9.12311 and </span><span>x=<span>0.876894</span></span>
4 0
3 years ago
ਇਕ ਐਕਸੈਲ ਵਰਕਬੁੱਕ ਵਿੱਚ ਹੁੰਦੀਆ ਹਨ<br> ​
kompoz [17]

Answer:

Cannot understand, please translate

Step-by-step explanation:

5 0
3 years ago
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