Algebra

# Roots Warmup

Raising a number to the $$\frac{1}{2}$$ power is the same as its square root.

Which of the following is equal to the expression above?

What is the value of

$\large \sqrt{ ( \color{red} {- 8} ) ^ 2 } \hspace{.15cm} ?$

$\large \sqrt{\color{purple}{99} \times \color{purple}{99}+\color{green}{199}} = \ \color{red} ?$

Note: There is a clever way to solve this problem without computing $$99^2$$.

$\Large \sqrt{ {\color{red} { 7}} \times \color{blue} {x} } = \color{green} {49 }$

Solve for $$x$$.

$\sqrt{ \frac{ 1 } { x } } = 8, \ \ \ \ \ x = \ ?$

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