Question

Identify which equation is a quadratic equation.

y = 3x(x + 8) − 15

y = −2x − 9

y + x2 = (x − 5)(x + 6)

y − 8 = (x − 8)(x2 + 5)

Answer 1

@Gabylovesyou Simplify each of the equations, the one with the highest power of x as 2 is a quadratic equation.

Answer 2

@ash2326 is it A?

Answer 3

correct, did you simplify and checked?

Answer 4

yep :)

Answer 5

Good work :D