Question

Do the addition of the following polynomial ​

Answer 1

$\longrightarrow{\green{}}$ $(3 {b}^{2} + 4 b- 5) + (5 + 4 {b}^{2} - 8b)$

Remove parenthesis.

$\longrightarrow{\green{}}$ $3 {b}^{2} + 4 b- 5+ 5 + 4 {b}^{2} - 8b$

Next, collect like terms.

$\longrightarrow{\green{}}$ $3 {b}^{2} + 4 {b}^{2} + 4 b- 8 b- 5 + 5$

$\longrightarrow{\green{}}$ $7 {b}^{2} - 4b$