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## Answers

**1) 27y³ - 125z³**

(3y)³ - (5z)³

(3y - 5z)(9y² + 15yz + 25z²)

**[By using a³ - b³ = (a - b)(a² + ab + b²)]**

**2) 64x³y³ + 27z³**

(4xy)³ + (3z)³

(4xy + 3z)(16x²y² - 12xyz + 9z²)

**[By using a³ + b³ = (a + b)(a² - ab + b²)]**

**************************HOPING THAT THIS WILL H*

*e*

*LP YOU!!!********************************