Algebra
Calculus
Trigonometry
Matrix
Question
Find the roots
x1=−255,x2=255
Alternative Form
x1≈−14.832397,x2≈14.832397
Evaluate
x2−220
To find the roots of the expression,set the expression equal to 0
x2−220=0
Move the constant to the right-hand side and change its sign
x2=0+220
Removing 0 doesn't change the value,so remove it from the expression
x2=220
Take the root of both sides of the equation and remember to use both positive and negative roots
x=±220
Simplify the expression
More Steps
Evaluate
220
Write the expression as a product where the root of one of the factors can be evaluated
4×55
Write the number in exponential form with the base of 2
22×55
The root of a product is equal to the product of the roots of each factor
22×55
Reduce the index of the radical and exponent with 2
255
x=±255
Separate the equation into 2 possible cases
x=255x=−255
Solution
x1=−255,x2=255
Alternative Form
x1≈−14.832397,x2≈14.832397
Show Solution
