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Andreyy89
3 years ago
9

Some of the steps in the derivation of the quadratic formula are shown. Step 4: Step 5: Step 6: Step 7: Which best explains why

the expression cannot be rewritten as during the next step? Negative values, like −4ac, do not have a square root. The ± symbol prevents the square root from being evaluated. The square root of terms separated by addition and subtraction cannot be calculated individually. The entire term b2 − 4ac must be divided by 2a before its square root can be determined.
Mathematics
2 answers:
Otrada [13]3 years ago
6 0

Answer:

The square root of terms separated by addition and subtraction cannot be calculated individually.

Step-by-step explanation:

In order to calculate the square root, we would need a monomial or a factored expression.  We do not have that, so we cannot take the square root.

Sophie [7]3 years ago
5 0
The correct answer for this question is this one: "The square root of terms separated by addition and subtraction cannot be calculated individually."

<span>The statement that best explains why the expression cannot be rewritten as during the next step is that <u>t</u></span><u>he square root of terms separated by addition and subtraction cannot be calculated individually.</u>
Hope this helps answer your question and have a nice day ahead.
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Step-by-step explanation:

Hello!

Let's first simplify the radical.

We can do this by expanding the radical:

We need to pull out a perfect square factor to expand a radical and simplify it. In 45, we have 9 and 5 multiplied, and 9 is a perfect square.

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