Question 1

1.   Ако је      $\25x ^{2}-\left(  1-2x ight) ^{2} = A^{2}-B^{2},\$ одредити $\left(  A+B ight)·\left(  A-B ight)$.

Accepted Answer

https://uploads.quizalize.com/a74e01af-8cc1-4578-b92b-4a0a43f2afb3/question/fd95768e640f3dc391063c9a4b4f46b71fff4ad0.png

Answer

https://uploads.quizalize.com/a74e01af-8cc1-4578-b92b-4a0a43f2afb3/question/5ec34a17d45719538d990d4dbb8219a219338f8b.png

Question 2

2.       $\25a ^{2}-40ab+16b ^{2}= \$

Accepted Answer

$\left( 5a-4b \right) ^{2}$

Answer

$\left( 5a+4b \right) ^{2}$

Question 3

3.  &#36;\1-25a ^{2}+40ab-16b ^{2}= \&#36;

Accepted Answer

https://uploads.quizalize.com/a74e01af-8cc1-4578-b92b-4a0a43f2afb3/question/16db559d40ae2e61f825381083fc9999dd93db78.png

Answer

https://uploads.quizalize.com/a74e01af-8cc1-4578-b92b-4a0a43f2afb3/question/215ddb79be79c9ee3348832ebd370898a0dcc678.png

Question 4

4. Применом формуле за разлику квадрата, израз ${\left( 2xy+3y ight)^{2}-\left(3y+1 ight)^{2}}\$ се може представити:

Accepted Answer

$\left(2xy+6y+1\right)·\left(2xy-1\right)$

Answer

$\left(2xy+6y+1\right)·\left(2xy+1\right)$

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