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OTHER TYPES OF EQUATIONS
Objectives:
• Radical Equations
• Equations of Quadratic Form
Guidelines for Solving Radical Equations 
• Isolate the radical on one side of the equation. • Raise both sides of the equation the appropriate power to eliminate the radical . • Solve the resulting equation • Check solutions 
Note: It is very important to check your solutions after
solving a radical equation
because raising both sides of an equation to a power sometimes does not produce
an equivalent equation .
Examples:
check:
Therefore, the solution set is {4}
Check:
The solution set is {18}
An equation o quadratic form is one that can be written as
by making
an appropriate substitution .
Examples:
then the equation becomes
because we have
let , then the equation becomes
because , we have
let , then the equation becomes
Check:
therefore 4 is a solution , now because , we have
let ,then the equation becomes
Because ,we have
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