14c³d²-21c²d³/14cd
= (196c^4d³-21c²d³)/ 14cd
= (196c³d²-21cd²)/14
= (28c³d²-3cd²)/2
I hope that's help !
Answer:

Step-by-step explanation:
You can see the attached picture
5 + 5 + 5 + 5 equals 550 lgjf8654
Answer:
x=55
Step-by-step explanation:
90 degree angle
90-35=55