SOLUTION: I don't understand this problem can someone please help me to see what I'm doing wrong? (-5a²)(a - 5)²

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Question 447467: I don't understand this problem can someone please help me to see what I'm doing wrong? (-5a²)(a - 5)²
Answer by Edwin McCravy(20056) About Me  (Show Source):
You can put this solution on YOUR website!
(-5a²)(a - 5)²

(-5a²)(a - 5)(a - 5)

(-5a²)(a² - 5a - 5a + 25)

(-5a²)(a² - 10a + 25)

-5a⁴+ 50a³ - 125a²

Edwin