Answer:
9x^2 -x +4
Step-by-step explanation:
3x^2 -x+7 +6x^2 -3
We need to combine like terms
I like to put them vertically
3x^2 -x+7
+6x^2 -3
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Answer: 9x^2 - x +4
3x^2 -x+7+6x^2-3
you add all like terms.
9x^2-x+7-3
9x^2-x+4
