Solve the following quadratic equations using the Quadratic Formula. 1. x2 - 4x - 21 = 0
2. 2x2 + 6x = 0
3. 3x2 – 25 = 0

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 =

Solve the equation -9p - 17 =10 a -3 b. 16 c. 18 d -16

If f(x) = 3x2 - 2x+4 and g(x) = 5x + 6x - 8, find (f-g)(x).