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Mathematics 9 Online
OpenStudy (anonymous):

someone please help: Find the difference of (−4x^2 − 7x^3 − 2) − (8x^3 + 3x − 7x^2). Be sure to show all of your work in a neat and organized fashion. Use the ^ (shift 6) symbol to show an exponent. For example, x squared can be written as x^2

OpenStudy (anonymous):

@ziko1995 help please

OpenStudy (anonymous):

@primeralph help please

OpenStudy (primeralph):

Can you try first?

OpenStudy (anonymous):

I did 3x^2-15x^3-12x3-2

OpenStudy (anonymous):

12x^3*

OpenStudy (primeralph):

Okay, go on.

OpenStudy (anonymous):

that's all I know

OpenStudy (primeralph):

-15x^3 - 11x^2 +3x -2

OpenStudy (anonymous):

how did you get that?

OpenStudy (primeralph):

Should be -15x^3 + 3x^2 - 3x -2 By combining like terms.

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