Helping students gain understanding and self-confidence in algebra.
buddy wrote:3. Express y= -2x^2 + 28x-26 in factored form
buddy wrote:6. Express y= -9x^2 + 72x +81 in vertex form
buddy wrote:3. -2 is the common factor? so i get -2(x^2+14-13), but i cant factor this?
buddy wrote:4. -9(x^2+72x)+81 but i dont knoe what to do next?