Answer:
Step-by-step explanation:
We got to add these together so
2x^2-8x-9+3x^2+8x-2
the 2x^2 and 3x^2 add to 5x^2
the 8x and -8x cancel each other out
the -9 and -2 add to -11
so..
5x^2 - 11
I hope this helped :)
5x²-11
2x²-8x-9+3x²+8x-2
2x²+3x²-8x+8x-9-2
hope it helps you
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