1. Solve 5x^2 = –45x. (1 point)
2. Solve x^2 = 14x – 49. (1 point)
3. Solve x^2 + 18 = –9x. (1 point)
4. Solve 4x^2 = 12x + 40. (1 point)
5. In the following equation, identify the x-intercepts in the graph y = 3x^2 + 19x – 40.
6.The dimensions of Eric’s pool are 9 feet by 7 feet. He wants to build a walkway surrounding the pool so that the square footage of the walkway and pool is 143 square feet. How wide is one side of the walkway?
7.Provide a unique real world example where quadratic equations might be used.

Question

1. Solve 5x^2 = –45x. (1 point)
2. Solve x^2 = 14x – 49. (1 point)
3. Solve x^2 + 18 = –9x. (1 point)
4. Solve 4x^2 = 12x + 40. (1 point)
5. In the following equation, identify the x-intercepts in the graph y = 3x^2 + 19x – 40. 
6.The dimensions of Eric’s pool are 9 feet by 7 feet.  He wants to build a walkway surrounding the pool so that the square footage of the walkway and pool is 143 square feet. How wide is one side of the walkway? 
7.Provide a unique real world example where quadratic equations might be used.