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Mathematics 19 Online
OpenStudy (anonymous):

How do you solve this? (−4x^2 − 5x^3 − 2) − (8x^3 + 3x − 9x^2)

OpenStudy (radar):

There is no solution, as it is only an expression (no equal sign) You may simplify by combining similar terms. I would start by distributing the - sign on the second set of parentheses. Getting: -8x^3 -3x + 9x^2. Now combine these with the terms in the first set.

OpenStudy (anonymous):

Its a polynomial..

OpenStudy (radar):

-13x^3+5x^2-3x-2 Now they are combined and in standard order. Yes it is a polynomial meaning it contains more than one variable.

OpenStudy (anonymous):

i got 5x^2-13x^3-2-3x

OpenStudy (radar):

There is no requirement to solve for x, in fact you couldn't as there is not enough information. It is not an equation as there is no equal sign

OpenStudy (radar):

Same as mine, but mine is arranged with the highest power in the first term, (standard form)

OpenStudy (radar):

Standard form is highest power then descending power.

OpenStudy (radar):

Your answer is correct.

OpenStudy (radar):

Unless your instructor request your answer to be in standard form.

OpenStudy (anonymous):

okay thank you

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