Solve the Equation $$x ^ { 2 } = 20$$ A) $\pm 4 \mathrm { i } \sqrt { 5 }$

Q398: Evaluate the discriminant for the equation.

Q399: Decide what values of the variable

Q400: Solve the equation.<br>- <span class="ql-formula" data-value="|

Q401: Solve the formula for the indicated

Q402: Decide what values of the variable

Q404: Solve and graph the inequality. Give

Q405: Solve the equation.<br>- <span class="ql-formula" data-value="\frac

Q406: Write the inequality in interval notation.<br>-

Q407: Determine whether or not the equation is

Q408: Identify the number as real, complex,