Question

Which equation is a quadratic equation?

Answer 1

5x + y = −2(x + 5)
3x3 − y = (3x − 2)(x + 5)
y + 7x = −3x(7 − 2x) + 11
y − 9 = (x2 + 1)(5x − 1) + 3

Answer 2

In mathematics, a quadratic equation is a univariate polynomial equation of the second degree. A general quadratic equation can be written in the form

ax^2+bx+c=0 where a is not 0

Answer 3

i thought it was b @Mertsj

Answer 4

That's what you should do...answer to the best of your ability.

Answer 5

y + 7x = −3x(7 − 2x) + 11 i think its the answer

Answer 6

thnx

Answer 7

your welcome and you never answered my messgae