Question

Which equation is quadratic in form?

2(x + 5)2 + 8x + 5 + 6 = 0
x6 + 6x4 + 8 = 0
7x6 + 36x3 + 5 = 0
4x9 + 20x3 + 25 = 0

Answer 1

I think it's the first one... but I'm not pretty sure.

Answer 2

C

Explanation:

edge 2020