Question

Which equation is a quadratic equation?

A. 5x − 2 = y
B. y + 15x2 = (3x − 2)(5x + 7)
C. y = 3x(5 − x) + 7
D. y + 2 = (3x2 + 10)(x − 1)

Answer 1

C,D

Answer 2

c only

Answer 3

actually quadratic is highest degree of 2 - so the only answer is c

d is cubic - 3rd degree

Answer 4

just c, d is cubic

Answer 5

B and C are. you have to expand them and see which terms give squared values

Answer 6

Yeah Only C

Answer 7

nevermind. only C!!!