The answer is going to be 2*sqrt(5). You have to split it into perfect squares for it to be simplified... so in this case, I had sqrt(4*5) because sqrt(4) can be simplified... so your answer would be sqrt(4)*sqrt(5) or 2sqrt(5)
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The width of the walkaway be 4 feet.
<h3>What is Discriminant Formula?</h3>
The discriminant formula is used to determine the nature of the roots of a quadratic equation. The discriminant of a quadratic equation is D =
If D > 0, then the equation has two real distinct roots.
If D = 0, then the equation has only one real root.
Given that:
also, area of walkaway = 464 square feet.
So,
Using Discriminant method,
a=4, b=100, c=-464
w=
w=
So,
Hence the width of the walkaway be 4 feet.
Learn more about discriminant formula here:
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