Question

find the sum of 10 + 3x , 25 - 4 x + 2 x2 , 3 x2 - 5x and -x2 + 2mn -9n2​

Answer 1

Answer:

4x²-4x+40

Step-by-step explanation:

2x²-4x+25

-x²+2x+15

3x²-5x+0

0+3x+10

4x²-4x+40

4(x²-x+10)