Algebra
Calculus
Trigonometry
Matrix
Question
Find the roots
x=21
Alternative Form
x=0.5
Evaluate
2x−1
To find the roots of the expression,set the expression equal to 0
2x−1=0
Find the domain
2x−1=0,x≥0
Calculate
2x−1=0
Move the constant to the right-hand side and change its sign
2x=0+1
Removing 0 doesn't change the value,so remove it from the expression
2x=1
Raise both sides of the equation to the 2-th power to eliminate the isolated 2-th root
(2x)2=12
Evaluate the power
2x=1
Divide both sides
22x=21
Divide the numbers
x=21
Check if the solution is in the defined range
x=21,x≥0
Solution
x=21
Alternative Form
x=0.5
Show Solution
