Question

Simplify (3x^2-x+7)+(6x^2-3)

Answer 1

[ Answer ]

`\boxed{9x^(2) \ - \ x \ + \ 4}`

[ Explanation ]

Simplify: (
`3x^(2)` - x + 7) + (
`6x^(2)` - 3)

Remove Parenthesis

`3x^(2)` - x + 7 +
`6x^(2)` - 3

Group Like Terms

`3x^(2)` +
`6x^(2)` - x + 7 - 3

Add Similar Elements:
`3x^(2)` +
`6x^(2)` =
`9x^(2)`

`9x^(2)` - x + 7 - 3

Add \ Subtract Numbers: 7 - 3 = 4

`9x^(2)` - x + 4

`\boxed{[ \ Eclipsed \ ]}`

Answer 2

Simplify

3x^2 - x + 7 + 6x^2 - 3

Collect like terms

(3x^2 + 6x^2) - x + (7 - 3)

Simplify

9x^2 - x + 4