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bonufazy [111]
3 years ago
10

Factorise each of the following.

Mathematics
1 answer:
kupik [55]3 years ago
5 0

Step-by-step explanation:

a) 2(32-4j+8k-jk)

b)a(3a-ab+3c -bc)

c)m(2m - mn + 2n - n^2)

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Please help... what is the domain of this graph?
k0ka [10]

Answer:-8,4 is ur answer

5 0
2 years ago
Two regular pentagons have areas of 20 mm² and x² - x mm². What values of x make the pentagons congruent?
Aleksandr-060686 [28]

<u>Answer</u>

5 and -4


<u>Explanation</u>

If the two triangle are congruent then they have the same area.

20 = x² - x

x² - x - 20 = 0

x² - x + (1/2)² = 20 + (1/2)²

(x - 1/2)² = 20.25

x - 1/2 = √20.25

x - 1/2 = 4.5                             or    x - 1/2 = - 4.5

x = 4 1/2 + 1/2                                      x = -4 1/2 + 1/2

   = 5                                                      = -4

The values of x are 5 and -4.



8 0
3 years ago
1/2 + (-3/4)= <br> i need help /:
Marysya12 [62]

Start by converting to like terms, so convert 1/2 to 2/4.

Next, look at the problem. You are adding a negative, which is the same as subtracting, so your new problem looks like this: 2/4 - 3/4.

If you take 3/4 from 2/4, you are left with -1/4. This is your final answer!

5 0
3 years ago
Help me pls! ill rate you very good!!!!
LenKa [72]
v is the correct answer hopefully that helped
6 0
3 years ago
Read 2 more answers
Please help with 5.<br> Thank you!
tatyana61 [14]
Make all the x points opposite. For example -837 to +837
7 0
2 years ago
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