Question

(8x3-3x2+x)+(2x2-5x+4)

Answer 1

-4x+26

Explanation:

Answer 2

`\boxed{ \bold{ { \boxed{ \sf{8 {x}^(3) - {x}^(2) - 4x + 4}}}}}`

Explanation:

`\sf{(8 {x}^(3) - 3 {x}^(2) + x) + (2 {x}^(2) - 5x + 4)}`

When there is a ( + ) in front of an expression in parentheses , no need to change the sign of each term. That means , The expression remains the same. Also , remove the unnecessary parentheses

⇒
`\sf{8 {x}^(3) - 3 {x}^(2) + x + 2 {x}^(2) - 5x + 4}`

Collect like terms

⇒
`\sf{8 {x}^(3) - 3 {x}^(2) + 2 {x}^(2) - 5x + x + 4}`

⇒
`\sf{8 {x}^(3) - {x}^(2) - 4x + 4}`

Hope I helped!

Best regards!!