Question

Identify which equation is a quadratic equation
a.y = -5x - 3
b.y = -4x(x + 10) + 34
c.y + x2 = (x - 4)(x + 3)
d.y - 2 = (x - 2)(x2 + 1)

Answer 1

All quadratic equation has the general form: y=ax^2+bx+c, with "a" diferent of zero. So, item "a" it's a linear equation. Item "b" is the correct. look: y= -4x^2-40x +34

Answer 2

THANKS!(: