Question

The derivation of the Quadratic Formula is shown by completing the square and applying square roots. What is the missing step?

A. x^2+b/a · x+c=0
B. ax^2+b/a · x+c/a=0
C. ax^2+b/a · x+c=0
D. x^2+b/a · x+c/a=0

Answer 1

Answer: x^2 + bx/a + c/a = 0

Explanation:

the step simplifies the division of a:

0 divided by anything is still zero, so you can remove the a denominator

a/a = 1, and is therefore irrelevant, so ax^2 / a = x^2

the rest can stay