Answer:
= x(a+b)(a-b) . x(b+c)(b-c) .x(c+a)(c-a)
X/2 is what i think it is because each number divides by 2
1)421x=6
x=70
2)x+6(6x)=420
x+36x=420
37x=420
x=11
3)x-6x=420
5x=420
x=84
4)x+6x=420
7x=420
x=60
2(2 + (x + 1/2x^2))
The brackets are important in this question.
