How do you simplify $(7x^3 - 1) - (15x^3 + 4x^2 - x + 3)$ ?

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Answer 1 · 2017-02-14T14:28:07

See the entire simplification process below:

First, remove all the terms from parenthesis. Be sure to handle the signs of the individual terms correctly:

$7x^3 - 1 - 15x^3 - 4x^2 + x - 3$

Next, rewrite the expression to group like terms:

$7x^3 - 15x^3 - 4x^2 + x - 3 - 1$

Now, combine like terms to complete the simplification:

$(7 - 15)x^3 - 4x^2 + x - 3$

$-8x^3 - 4x^2 + x - 3$

How do you simplify (7x^3 - 1) - (15x^3 + 4x^2 - x + 3)(7x^3 - 1) - (15x^3 + 4x^2 - x + 3)?