Algebra
Calculus
Trigonometry
Matrix
Question
Factor the expression
(x−11)(x+11)
Evaluate
x2−121
Rewrite the expression in exponential form
x2−112
Solution
(x−11)(x+11)
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Find the roots
x1=−11,x2=11
Evaluate
x2−121
To find the roots of the expression,set the expression equal to 0
x2−121=0
Move the constant to the right-hand side and change its sign
x2=0+121
Removing 0 doesn't change the value,so remove it from the expression
x2=121
Take the root of both sides of the equation and remember to use both positive and negative roots
x=±121
Simplify the expression
More Steps
Evaluate
121
Write the number in exponential form with the base of 11
112
Reduce the index of the radical and exponent with 2
11
x=±11
Separate the equation into 2 possible cases
x=11x=−11
Solution
x1=−11,x2=11
Show Solution