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xxTIMURxx [149]
4 years ago
12

Factor the following

Mathematics
2 answers:
jek_recluse [69]4 years ago
7 0

Answer:

(x - 4)×(x + 4)

Step-by-step explanation:

(x - 4)×(x + 4) = x^2 - 16

First we need to multiply inside the parenthesis one by one

Multiply x with (x + 4) and the result will be x^2 + 4x

Then multiply -4 with (x + 4) and result will be -4x - 16 we then add both of the result together by adding like terms

x^2 + 4x - 4x - 16 = x^2 - 16 (-4x eliminated 4x) therefore the answer to factorised form of x^2 - 16 is (x - 4)×(x + 4)

tino4ka555 [31]4 years ago
3 0

Answer:

(x - 4)(x + 4)

Step-by-step explanation:

x^2 - 16

Difference of two squares

x^2 - 4^2

(x - 4)(x + 4)

Check

x x x +x x 4 -4 x x -4 x 4

x^2 + 4x - 4x - 16

x^2 - 16

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2-2x&lt;4? <br> Can someone please help me!
yKpoI14uk [10]

Answer:

x > -1

Step-by-step explanation:

To solve the inequality, use the same rules as solving equations.

2 - 2x < 4

-2x < 2

x > -1

Since you divide by a negative, you must switch the sign < to >.

6 0
3 years ago
A grizzly bears top speed is about 36 mph. This speed makes the bear about 1 1/2 times as fast as an African elephant.
sveta [45]
54mph because 36×1 1/2 is equal to 36+36×1/2 which is 18
7 0
4 years ago
Read 2 more answers
An exterior angle of a regular polygon cannot have the measure Select one: a. 90 b. 120 c. 50 d. 40 e. 30
Otrada [13]

Answer:  c. 50

Step-by-step explanation:

1. By definition, when you add the exterior angles of a regular polygon, you obtain 360 degrees and the number of sides of that polygon can be calculated by dividing 360 degrees by the measure of the exterior angle of it.

2. As you know, the number of sides cannot be fractions, therefore, if you make the folllowing division:

360°/50°=36/5

You obtain a fraction.

3. Then, an exterior angle of a regular polygon cannot have the measure is 50°.

7 0
4 years ago
Read 2 more answers
Please help, thanks!
Mamont248 [21]
((-4x^3)(y^4))^-3
--------------------------
(2xy^4)^-4
16x^4y^16
=------------------------
-64x^9y^12
-16y^4
=------------------------
64x^5
-y
=------------------------
4x^5

So the final answer is:

-y^4
-------
4x^5

(Btw if "^" is in front of a number, that means it is an exponent, so when your writing this on paper, just write it as a regular exponent without the "^". I had to do that since I'm on a computer.)  

Hopefully this was helpful in some way. 

7 0
4 years ago
Taking a discount of 50% off followed by a discount of 50% off results in a total discount of _____. a. 25% b. 50% c. 75% d. 100
Ronch [10]

Answer: 75% off the original price.

Step-by-step explanation:Say an item is $100.  50% off $100 is of coarse $50.

Now 50% off that price is $25.

So the new price is now $25 which is 75% off.

3 0
3 years ago
Read 2 more answers
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