subract: -3y(2z+5y)from5z(-2y+3z)
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Answer:
5z(-2y + 3z) - {- 3y( 2z+ 5y)}
= -10yz + 15 z² - ( -6yz - 15y²)
= -10yz + 15 z² + 6yz + 15y²
= -4yz + 15(z² + y²)
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