Question

resolva as operaçoes e apresente na forma reduzida

1-  (x+5y)²      2-   (x+1/5)²    3-   (8a+1/2)²   4-  (2a-3b)²   5-   (x^6-11)²   6-   (x-1/4)²  7-  (3x+7y)(3x-7y)  8- (4a³-3)(4a³+3)    8-   (a^5+b^4)(a^5-b^4)    9- (x²-1/3)(x²+1/3)

Answer 1

1-  (x+5y)² = x² + 10xy + 25y²     

2-   (x+1/5)² = x² + 2/5xy + 1/25   

3-   (8a+1/2)² = 64a² + 8a+ 1/4  

4-  (2a-3b)² = 4a² - 12ab + 9b²  

5-   (x^6-11)² = x^12 - 22x^6 + 121  

6-   (x-1/4)² = x² - 1/2xy + 1/16

7-  (3x+7y)(3x-7y) = 9x² - 49

8- (4a³-3)(4a³+3) = 16a^6 - 9

9-   (a^5+b^4)(a^5-b^4) = a^10 - b^8   

10- (x²-1/3)(x²+1/3) = x^4 - 1/9