Question

The first few steps in deriving the quadratic formula are shown.

Which best explains why b2/4a2 is not added to the left side of the equation in the last step shown in the table?



• The term b2/4a2 is added to the right side of the equation, so it needs to be subtracted from the left side of the equation to balance the sides of the equation.


• The distributive property needs to be applied to determine the value add to the left side of the equation to balance the sides of the equation.


• The term b2/4a2 needs to be converted so it has a common denominator before adding it to the left side of the equation to balance the equation.


• The square root of the term needs to be found before adding the term to the left side of the equation to balance the sides of the equation.

Answer 1

Answer: The answer is choice B.

Explanation:

Answer 2

• The distributive property needs to be applied to determine the value to add to the left side of the equation to balance the sides of the equation.

Explanation:

We have to multiply the term b2/4a2 by a in order to determine the value to add to the left side of the equation so as to balance both sides of the equation.

If we multiply the terms, we get;

`(b^(2) )/(4a^(2) )*a=(b^(2) )/(4a)`

Therefore, we shall be adding the term
`(b^(2) )/(4a)` to the left side of the equation.