Sagot :
1.) 3a+9
2.) 15d+9
3.) b2-64
4.) 9e²-16
5.) -19xy - 18x²y² - 48x²y + 56x - 7
solution in the comment just wait
-mingmingqtt

1.) 3a+9
2.) 15d+9
3.) b2-64
4.) 9e²-16
5.) -19xy - 18x²y² - 48x²y + 56x - 7
solution in the comment just wait
-mingmingqtt