3x^4−6x^2+4x−9

Question

+5x^4+3x^2+10x+2
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8x^4−3x^2+14x−7
Is this right?

Answer 1

3x^4−6x^2+4x−9+5x^4+3x^2+10x+2
(5+3)x^4 +(-6+3)x^2 +(10+4)x+(2-9) as I see it, so it does match yours

Answer 2

oh thank you for checking it!