Question

Add the following expressions:
5x^3+7+6x\ -5x^2\ ,\ 2x^2-8-9x,\ 4x-2x^2+3x^3\ ,3\ x^{3\ }-9x-x^2\ and\ x-x^2-x^3\ -45x
3
+7+6x −5x
2
, 2x
2
−8−9x, 4x−2x
2
+3x
3
,3 x
3
−9x−x
2
and x−x
2
−x
3
−4​

Answer 1

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