Add the following polynomials by combining like terms, and place them into simplest form.

Question

(3xy2 + 6yx5 + 11yz9 + y + 87) + (13yx5 + 13xy2 + y + 10 + yx5 )

(n2 + 4 + 4o3 + n) + (4 + n + 4m2 n 2 + 8n2 ) + (18 + 9m2 n 2 + 4o3 + 9n2 )

(12 +6s4 t 2 +s) + (10 + s + 6s4 t 2 + 8s2 ) + (21+ 6s4 t 2 + 7s4 t 2 )

Answer 1

16xy^2 +20xy^5 + 11yz^9 +2y + 18n^2 + 8o^2 + 2n + 13 m^2n^2 + 25s^4t^2 + s + 166