Answer:
(NUMBER LINE ATTACHED)
Step-by-step explanation:
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1. no like terms
2. x^ 3 − x^ 2 − x + 1
3.x y + x + y + 1
4.x^ 3 + x^ 2 y + x y^ 2 + y^ 3
Lol
side length of square=10
Now,
perimeter of square =4l
=4×10
=40m
