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siniylev [52]
3 years ago
6

It is 30 points and will give brainliest

Mathematics
1 answer:
allochka39001 [22]3 years ago
7 0

Answer:

4a2−4ab+b2

Step-by-step explanation:

(2a−b)2 =(2a+−b)(2a+−b)

=(2a)(2a)+(2a)(−b)+(−b)(2a)+(−b)(−b)  

 Sooo our equation =4a2−2ab−2ab+b2

Hoped I helped -

Sleepy~

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Answer:

See below

Step-by-step explanation:

15)

In the right-angle triangle, once one of the angles is 44º, then, the unknown angle is x.

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