Question

Simplify (5x^2 + 3x + 4) + (2x^2 − 6x + 3).

Answer 1

`\Large \boxed{7x^2-3x+ 7}`

Explanation:

`(5x^2 + 3x + 4) + (2x^2 -6x + 3)`

Removing brackets.

`5x^2 + 3x + 4 + 2x^2 -6x + 3`

Grouping like terms.

`(5x^2 + 2x^2) + (3x -6x)+ (4 + 3)`

Combining like terms.

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

Answer 2

7x² - 3x + 7

Explanation:

Step 1: Write out expression

5x² + 3x + 4 + 2x² - 6x + 3

Step 2: Combine like terms (x²)

7x² + 3x + 4 - 6x + 3

Step 3: Combine like terms (x)

7x² - 3x + 4 + 3

Step 4: Combine like terms (constants)

7x² - 3x + 7