Question

please make sure answer is correct​

Answer 1

Step-by-step explanation:

(4+3x)+(5-4x+2x²)

=1-x+2x²

(3x²-5x)+(-x²+2x+5)

=2x²-3x+5

(1-x+2x²)-(2x²-3x+5)

1-x+2x²-2x²+3x-5

=2x-4 answer

Answer 2

Kindly refers to attachment