SOLUTION: Multiply (x-1)(x^2-2x-3)

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Question 490819: Multiply (x-1)(x^2-2x-3)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

%28x-1%29%28x%5E2-2x-3%29 Start with the given expression.


x%28x%5E2-2x-3%29-1%28x%5E2-2x-3%29 Expand.


Distribute.


x%5E3-2%2Ax%5E2-3%2Ax-x%5E2%2B2%2Ax%2B3 Multiply.


x%5E3-3%2Ax%5E2-x%2B3 Now combine like terms.


So %28x-1%29%28x%5E2-2x-3%29 expands to x%5E3-3%2Ax%5E2-x%2B3.


In other words, %28x-1%29%28x%5E2-2x-3%29=x%5E3-3x%5E2-x%2B3.