Question

Add the algebraic expressions x²+x-2 and 2x²-5x+7​

Answer 1

`3x^2-4x+5`

Explanation:

`x^2+x-2+2x^2-5x+7`

Group like terms:

`x^2+2x^2+x-5x-2+7`

Add similar elements:

`x^2+2x^2`

`=3x^(2)`

Add similar elements:

`x-5x`

`=-4x`

`3x^2-4x-2+7`

Add the numbers:

`-2+7`

`=3x^2-4x+5`

~❃❃ OPEACEO❃❃~

Answer 2

`\large \mathfrak{Solution : }`

• 
  `{x}^(2) + x - 2 + 2 {x}^(2) - 5x + 7`

• 
  `{x}^(2) + 2 {x}^(2) + x - 5x - 2 + 7`

• 
  `3 {x}^(2) - 4x + 5`