Question

add the polynomial 5xy – 3x^2 – 12y +5x , xy – 3x – 12yz +5x^3 and y – 6x^2 – zy +5x^3​

Answer 1

Answer:

$10 {x}^{3} - 9 {x}^{2} + 6xy - 13yz + 2x - 11y$

Step-by-step explanation:

5xy-3x^2-12y+5x+xy-3x-12yz+5x^3+y-6x^2-zy+5x^3

= 5x^3+5x^3-3x^2-6x^2+5xy+xy-12yz-yz+5x-3x-12y+y

=

$10 {x}^{3} - 9 {x}^{2} + 6xy - 13yz + 2x - 11y$