Question

Question=add the following polynomial

give answer in step by step explanation​

Answer 1

Answer:

$(5 {x}^{2} + 7x + 3) + (12 {x}^{2} - 3x + 8) + (6 {x}^{2} - 4x + 11)$

$= 5 {x}^{2} + 12 {x}^{2} + 6 {x}^{2} + 7x - 4x - 3x + 3 + 8 + 11$

$= 23 {x}^{2} + 22(ans)$