Algebra
Calculus
Trigonometry
Matrix
Question
Find the roots
x1=−310,x2=310
Alternative Form
x1≈−9.486833,x2≈9.486833
Evaluate
x2−90
To find the roots of the expression,set the expression equal to 0
x2−90=0
Move the constant to the right-hand side and change its sign
x2=0+90
Removing 0 doesn't change the value,so remove it from the expression
x2=90
Take the root of both sides of the equation and remember to use both positive and negative roots
x=±90
Simplify the expression
More Steps
Evaluate
90
Write the expression as a product where the root of one of the factors can be evaluated
9×10
Write the number in exponential form with the base of 3
32×10
The root of a product is equal to the product of the roots of each factor
32×10
Reduce the index of the radical and exponent with 2
310
x=±310
Separate the equation into 2 possible cases
x=310x=−310
Solution
x1=−310,x2=310
Alternative Form
x1≈−9.486833,x2≈9.486833
Show Solution
