Question

Add. (5b^4-4b^3+5b^2+17b-8)+(b^5+9b^3+6b^2-5b+3)+(-8b^4+b^2-7b-4)

Answer 1

(5b^4-4b^3+5b^2+17b-8)+(b^5+9b^3+6b^2-5b+3)+(-8b^4+b^2-7b-4)=b^5-3b^4+5b^3+12b^2+5b-9

Answer 2

I hope i haven't 4gotten anything :/