3(1/2) in fraction form no decimall form

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

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 =