Question
Calculate the value
−22
Alternative Form
≈−0.707107
Evaluate
50−5
Simplify the root
More Steps

Evaluate
50
Write the expression as a product where the root of one of the factors can be evaluated
25×2
Write the number in exponential form with the base of 5
52×2
The root of a product is equal to the product of the roots of each factor
52×2
Reduce the index of the radical and exponent with 2
52
52−5
Cancel out the common factor 5
2−1
Use b−a=−ba=−ba to rewrite the fraction
−21
Multiply by the Conjugate
2×2−2
When a square root of an expression is multiplied by itself,the result is that expression
2−2
Solution
−22
Alternative Form
≈−0.707107
Show Solution
