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erica [24]
3 years ago
13

Can someone plz help me with this question

Mathematics
2 answers:
WITCHER [35]3 years ago
7 0
Sorry I can’t buddy........................................................:(
Kamila [148]3 years ago
3 0

Answer:

x=50

Step-by-step explanation:

Add all the side together, you will have 2x+80

And every triangle is 180 degrees, subtract 80 from each side

You will be left with 2x=100

x=50

Brainlist if possible

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Prove algebraically that (m + 2)2 – m 2 – 12 is always a multiple of 4
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Answer:

(m + 2)^{2} - m^{2}  - 12 = 4(m - 2)

Step-by-step explanation:

Step 1:

Write the expression

(m+2)^{2} - m^{2}  - 12

Step 2: Expand (m + 2)^{2}

(m+2)^{2} - m^{2} - 12\\(m+2)(m+2) - m^{2}  - 12\\m^{2} + 2m + 2m + 4 - m^{2}  - 12

Step 3: Collect similar terms

m^{2}  - m^{2}  + 4m + 4 - 12\\4m - 8

Step 4: Factor 4 out of the expression to prove that the expression is a multiple of 4.

Therefore\\4m - 8 = 4(m - 2)\\Hence,\\(m+2)^{2}  - m^{2} -  12 is a multiply of 4 because the expression is equal to 4(m-2)

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Vitek1552 [10]

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Sauron [17]

Answer:

Here's an example of long division:

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Step-by-step explanation:

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