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Section 1
Introduction to Radical Notation
Find the square roots of 64 .
Find the square roots of 100 .
Find the square roots of $-25$.
Solve $x^{2}=16$ for $x$, then simplify your answers.
Solve $x^{2}=49$ for $x$, then simplify the answers.
Solve $x^{2}=-9$ for $x$, then simplify the answers.
Simplify: $-\sqrt{144}$.
Simplify: $(-\sqrt{21})^{2}$.
Use the graphing calculator to solve $x^{2}=-5$. Then solve the equation algebraically and compare answers.
Estimate: $\sqrt{83}$.