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Finite Math Examples
Step 1
Step 1.1
Simplify each term.
Step 1.1.1
Multiply by .
Step 1.1.2
Multiply by .
Step 1.2
Combine the opposite terms in .
Step 1.2.1
Add and .
Step 1.2.2
Add and .
Step 2
Substitute into the equation. This will make the quadratic formula easy to use.
Step 3
Step 3.1
Consider the form . Find a pair of integers whose product is and whose sum is . In this case, whose product is and whose sum is .
Step 3.2
Write the factored form using these integers.
Step 4
If any individual factor on the left side of the equation is equal to , the entire expression will be equal to .
Step 5
Step 5.1
Set equal to .
Step 5.2
Add to both sides of the equation.
Step 6
Step 6.1
Set equal to .
Step 6.2
Subtract from both sides of the equation.
Step 7
The final solution is all the values that make true.
Step 8
Substitute the real value of back into the solved equation.
Step 9
Solve the first equation for .
Step 10
Step 10.1
Take the specified root of both sides of the equation to eliminate the exponent on the left side.
Step 10.2
Simplify .
Step 10.2.1
Rewrite as .
Step 10.2.2
Pull terms out from under the radical, assuming positive real numbers.
Step 10.3
The complete solution is the result of both the positive and negative portions of the solution.
Step 10.3.1
First, use the positive value of the to find the first solution.
Step 10.3.2
Next, use the negative value of the to find the second solution.
Step 10.3.3
The complete solution is the result of both the positive and negative portions of the solution.
Step 11
Solve the second equation for .
Step 12
Step 12.1
Remove parentheses.
Step 12.2
Take the specified root of both sides of the equation to eliminate the exponent on the left side.
Step 12.3
Rewrite as .
Step 12.4
The complete solution is the result of both the positive and negative portions of the solution.
Step 12.4.1
First, use the positive value of the to find the first solution.
Step 12.4.2
Next, use the negative value of the to find the second solution.
Step 12.4.3
The complete solution is the result of both the positive and negative portions of the solution.
Step 13
The solution to is .
Step 14