Algebra
Calculus
Trigonometry
Matrix
Question
Find the roots
x1=−32,x2=32
Alternative Form
x1≈−4.242641,x2≈4.242641
Evaluate
(x2−18)
To find the roots of the expression,set the expression equal to 0
x2−18=0
Move the constant to the right-hand side and change its sign
x2=0+18
Removing 0 doesn't change the value,so remove it from the expression
x2=18
Take the root of both sides of the equation and remember to use both positive and negative roots
x=±18
Simplify the expression
More Steps
Evaluate
18
Write the expression as a product where the root of one of the factors can be evaluated
9×2
Write the number in exponential form with the base of 3
32×2
The root of a product is equal to the product of the roots of each factor
32×2
Reduce the index of the radical and exponent with 2
32
x=±32
Separate the equation into 2 possible cases
x=32x=−32
Solution
x1=−32,x2=32
Alternative Form
x1≈−4.242641,x2≈4.242641
Show Solution
