Question

Select all of the following that are quadratic equations.
3x 2 + 5x - 7 = 0
x3 - 2x2 + 1 = 0
2x - 1 = 0
5x 2+ 15x = 0
6x - 1 = 4x + 7
x 2 - 4x = 4x + 7

Answer 1

linear= up to power of 1
quadratic = up to power of 2
cubic = up to power of 3
:)

Answer 2

so 1, 2, 4, and 6

Answer 3

2 is cubic

Answer 4

1 4 6 is correct :)

Answer 5

thanks