Algebra
Calculus
Trigonometry
Matrix
Question
Find the roots
X1=−7,X2=7
Alternative Form
X1≈−2.645751,X2≈2.645751
Evaluate
X2−7
To find the roots of the expression,set the expression equal to 0
X2−7=0
Move the constant to the right-hand side and change its sign
X2=0+7
Removing 0 doesn't change the value,so remove it from the expression
X2=7
Take the root of both sides of the equation and remember to use both positive and negative roots
X=±7
Separate the equation into 2 possible cases
X=7X=−7
Solution
X1=−7,X2=7
Alternative Form
X1≈−2.645751,X2≈2.645751
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