A HoverCraft Takes Off from a platform. Its height(in meters) x seconds after takeoff is modeled by h(x)=-(x-11)(x+3)
How many seconds after takeoff will the hovercraft land on the ground?

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 =