Question

2x2+5x+10x+7 x3+9 x2
​

Answer 1

Answer:

2x2+5x+10x+7 x3+9 x2

4 + 15x + 21 + 18

15x + 43

Answer 2

Answer:

2*2=4

5x+10x=15x

7*3=21

9*2= 18

then add all solutions of the sums

4+15x+21+18= 43 + 15x

the correct answer is

43 + 15x