Enter a problem...
Precalculus Examples
Step 1
Step 1.1
Rewrite as .
Step 1.2
Let . Substitute for all occurrences of .
Step 1.3
Factor using the perfect square rule.
Step 1.3.1
Rewrite as .
Step 1.3.2
Check that the middle term is two times the product of the numbers being squared in the first term and third term.
Step 1.3.3
Rewrite the polynomial.
Step 1.3.4
Factor using the perfect square trinomial rule , where and .
Step 1.4
Replace all occurrences of with .
Step 2
Set the equal to .
Step 3
Step 3.1
Add to both sides of the equation.
Step 3.2
Take the specified root of both sides of the equation to eliminate the exponent on the left side.
Step 4
The result can be shown in multiple forms.
Exact Form:
Decimal Form: