Question

The standard form of a quadratic equation is ax^2 + bx+c =0. For

which of the following quadratic equations is a= -1 and C=0?

Answer 1

Answer

-x^2 + x = 0

Step-by-step explanation

Write all the quadratic equations in standard form:

X^2 -1 = ax^2 - c

-x^2 + 1 = -ax^2 + c

x^2 - x = ax^2 -bx (no c)

-x^2 + x = -ax^2 +bx (no c)