Question

(143a^4b^2 – 9a^3b – 11a^3) – (262a^4b^2 – a^3b – 4a^3) + (119a^4b^2 – 20a^3 + 8a^3b) ПОМОГИТЕ РЕШИТЬ!!!!!!

Answer 1

(143a^4b^2 – 9a^3b – 11a^3) – (262a^4b^2 – a^3b – 4a^3) + (119a^4b^2 – 20a^3 + 8a^3b) =
(143a^4b^2-262a^4b^2+119a^4b^2)+(-9a^3b +a^3b+8a^3b)+(4a^3-20a^3- 11a^3)=-27a^3