Exam 8: Radical Expressions and Equations

Solve the quadratic equation by using the square root property.

Multiply the radicals and simplify.

Rationalize the denominator and simplify.

You __________ as 15.81.

Is the given value of the variable a solution of the radical equation?

Evaluate the radical expression for the given value of the variable. If the square root does not exist select not real as the answer. for

Solve the quadratic equation. Give both the exact solution(s) and solution(s) rounded to two decimal places.

Solve the quadratic equation by using the square root property.

Divide and simplify.

Add or subtract the radical expressions. Assume that all variables under radicals represent positive values. Simplify your answer.

Solve the quadratic equation by using the square root property.

Solve the quadratic equation. Give both the exact solution(s) and solution(s) rounded to two decimal places.

The quadratic formula states that the solutions to are given by

Solve the quadratic equation.

A radical equation has a variable expression under the radical.

Solve the radical equation.

Multiply and simplify.

A rock is dropped from a building that is 60 meters high. The rock s height h in meters after t seconds is given by the equation . At what time is the rock at a height of 30 meters? Round the answer to two decimal places.

Simplify the expression. Assume that the variable has positive values.

The __________ property of radicals states that if a and b are positive or zero then .