Question

Simplify (2x^2+x+4)+(-3+7x+8x^2)

Answers
10x^2-6x-1
-x^2+8x+12
10x^2+8x+7
10x^2+8x+1

Answer 1

[ Answer ]

`\boxed{10x^(2) \ + \ 8x \ + \ 1}`

[ Explanation ]

Simplify: (
`2x^(2)` + x + 4) + (-3 + 7x +
`8x^(2)`)

Remove Parenthesis

`2x^(2)` + x + 4 + -3 + 7x +
`8x^(2)`

Group Like Terms

`2x^(2)` +
`8x^(2)` + 8 + 7x + 4 - 3

Add Similar Elements: x + 7x = 8x

`2x^(2)` +
`8x^(2)` + 8x + 4 - 3

Add Similar Elements

`2x^(2)` +
`8x^(2)` =
`10x^(2)`

`10x^(2)` + 8x + 4 - 3

Add / Subtract The Numbers: 4 - 3 = 1

`10x^(2)` + 8x + 1

`\boxed{[ \ Eclipsed \ ]}`