Question

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

simplify the equations...the one that has an x^2 as the highest degree is a quadratic equation

Answer 2

The equation that will be having the highest power 2 will be quadratic..

Answer 3

just solve

Answer 4

Is y-8x=(x^2+1)(9x-7) the right answer?

Answer 5

Nope, it has a x^2 already, if you foil the thing, you'll get a x^3, which is a cubic function