Answer:
Isosceles or scalene
Isosceles has 2 sides that are the same value
scalene is where none of the sides are equal
Answer:
(sqrt(x) +1)(sqrt(x)-2)
Step-by-step explanation:

3,751+3,751= 7,502
3,75l*2=7,502
15,004/2= 7,502
5,689+1,831=7,502
8,965-1,463=7,502
62*121=7,502
31*242=7,502
11*682=7,502
7,000+502=7,502
7,000+400+102=7,502
6,000+1,500+2