Question
Find the roots
g1=−22,g2=22
Alternative Form
g1≈−2.828427,g2≈2.828427
Evaluate
g2−8
To find the roots of the expression,set the expression equal to 0
g2−8=0
Move the constant to the right-hand side and change its sign
g2=0+8
Removing 0 doesn't change the value,so remove it from the expression
g2=8
Take the root of both sides of the equation and remember to use both positive and negative roots
g=±8
Simplify the expression
More Steps

Evaluate
8
Write the expression as a product where the root of one of the factors can be evaluated
4×2
Write the number in exponential form with the base of 2
22×2
The root of a product is equal to the product of the roots of each factor
22×2
Reduce the index of the radical and exponent with 2
22
g=±22
Separate the equation into 2 possible cases
g=22g=−22
Solution
g1=−22,g2=22
Alternative Form
g1≈−2.828427,g2≈2.828427
Show Solution
