Question

I NEED HELP
Which equation is a quadratic equation?

y + 3 = 5x + 10

y + 4x2 = (4x − 2)(x + 3)

y − 8x = (x2 + 1)(9x − 7)

y = 2x + 7x(x + 1)

Answer 1

An equation is quadratic if the highest power is a squared ie x^2.

Answer 2

Quadratic equations are those that can be put is this form: y = ax^2+bx+c

Answer 3

So which one do you think it is?

Answer 4

y = 2x + 7x(x + 1)?

Answer 5

@Mertsj

Answer 6

Very good.

Answer 7

thanks for the help!

Answer 8

what do you mean? @bfsgd

Answer 9

yw

Answer 10

False alarm! I got excited by the 4x^2 in number two and didn't notice the one on the other side. Sorry!

Answer 11

okay no problem haha!