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19-03-2018
Mathematics

contestada

(x^2-4x+5)+(7x^2+2x-3)

(7x^2+4x-6)-(2x^2-3x+1)

add or subtract

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thebest1221 thebest1221

19-03-2018

8x^4-2x+2

5x^7x-7

I know you're going to question how I got 7. & the answer is when you have to negatives by each other that turns into a positive and you actually add. Hope this helps!

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