Algebra
Calculus
Trigonometry
Matrix
Question
Find the roots
x1=−2,x2=2
Alternative Form
x1≈−1.414214,x2≈1.414214
Evaluate
2−x2
To find the roots of the expression,set the expression equal to 0
2−x2=0
Move the constant to the right-hand side and change its sign
−x2=0−2
Removing 0 doesn't change the value,so remove it from the expression
−x2=−2
Change the signs on both sides of the equation
x2=2
Take the root of both sides of the equation and remember to use both positive and negative roots
x=±2
Separate the equation into 2 possible cases
x=2x=−2
Solution
x1=−2,x2=2
Alternative Form
x1≈−1.414214,x2≈1.414214
Show Solution
