Question
Find the roots
l1=−22,l2=22
Alternative Form
l1≈−4.690416,l2≈4.690416
Evaluate
l2−22
To find the roots of the expression,set the expression equal to 0
l2−22=0
Move the constant to the right-hand side and change its sign
l2=0+22
Removing 0 doesn't change the value,so remove it from the expression
l2=22
Take the root of both sides of the equation and remember to use both positive and negative roots
l=±22
Separate the equation into 2 possible cases
l=22l=−22
Solution
l1=−22,l2=22
Alternative Form
l1≈−4.690416,l2≈4.690416
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