How do you rewrite #-5x ^ { 2} ( - 5x ^ { 3} - 9x )# without parentheses?

1 Answer
smendyka
May 31, 2017

See a solution process below:

Explanation:

To rewrite this expression without parenthesis we need to multiply each term within the parenthesis by the term outside the parenthesis:

#color(red)(-5x^2)(-5x^3 - 9x) =>#

#(color(red)(-5x^2) xx -5x^3) + (color(red)(-5x^2) xx -9x) =>#

#25x^5 + 45x^3#

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