Mr. Simonds MTH 95 โ radical equations
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Key Concepts: Solving simple radical equations
Textbook sections and practice problems
7.6: 7-39 odd
Examples
Solve
3
24tโ=.
Solving equations when the variable occurs in a radicand
1. Isolate the radical expression on one side of the equal sign. If there are two radicals,
write them on opposite sides of the equal sign.
2. Raise both sides of the equation to the
n
th
power, where
n
is the index of the radical
expression(s).
3. Solve the resultant equation.
4. You
must
check your solutions. For example, squaring both sides of equation can
introduce false solutions.
(
)
22
22 2 2
False True
โ= โ =
