Simplify the expression: 4x2 − 8y + 3x − 9x2 + 10y

Question

mathstudent55 · Answer

Do you know what like terms are?

mathmale · Answer

$$4x2 − 8y + 3x − 9x2 + 10y~\rightarrow~4x^2-8y+3x-9x^2+10y$$ is more accurate mathematically.  Do any of the terms of this expression have anything in common?  You might want to group "like terms" together.

anonymous · Answer

4x^2 - 8y + 3x - 9x^2 + 10y
separate like this to get terms:
(+4x^2) (-8y) (+3x) (-9x^2) (+10y)

anonymous · Answer

and like @mathmale said, combine like terms. (terms with same ending variable and ^power)

anonymous · Answer

A little rearranging might be more helpful,
(+4x^2) (-9x^2) (+3x) (+10y) (-8y)

mathmale · Answer

Hint for @cathyhern:  Which terms have x in them?  Which terms have y in them?  You might want to re-arrange the terms of  4x2 − 8y + 3x − 9x2 + 10y accordingly.

anonymous · Answer

TNE

anonymous · Answer

+4x^2 -9x^2 +3x +10y -8y <-- sorry parentheses signify multiplying, and there is no multiplying.

anonymous · Answer

thanks

anonymous · Answer

:D always love to help.