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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)
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)
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1- (x+5y)² = x² + 10xy + 25y²2- (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