Find the value of x. Write the answer in simplest radical form.

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122