The simplified value of the given [(- 2 ± 2√40)/2] is (- 1 ± 2√10) as per the rules of surd.
What is a surd?
"In mathematics, a surd number is the irrational root of an integer. The n-th root of a number x is a number r which, when raised to the power n, yields x."
Therefore, [tex]\sqrt[n]{x} = r[/tex]
⇒ x = rⁿ
Given, [(- 2 ± 2√40)/2]
= [(- 2 ± 2 √(4 × 10)/2]
= [(- 2 ± 2 × 2√10)/2]
= [(- 2 ± 4√10)/2]
= (- 1 ± 2√10)
Learn more about surd here: https://brainly.com/question/12724085
#SPJ2
