Question

Simplify.

(5x-2+3x²)+(4x+3)
O 3x² +9x-1
O 12x4 +1
O 3x²+x+5
O 3x² +9x+1

Answer 1

3x² + 9x + 1

Explanation:

5x - 2 + 3x² + 4x + 3

= 9x - 2 + 3x² + 3

= 9x + 1 + 3x²

= 3x² + 9x + 1

Answer 2

The simplified version is: 3x^2 + 9x +1