Question

Add: 5x2 - 6x + 7; -3x2 - 9+ 4x; 8- 2x - 4x2

Answer 1

Answer:

-2x^2 -4x + 6

Step-by-step explanation:

=5x2 - 6x + 7; -3x2 - 9+ 4x; 8- 2x - 4x2

=(5x^2 - 3X^2 -4x^2) + (-6x +4x - 2x) + (7-9+8)

=-2x^2 -4x + 6