Please help me with my homework 10. Work backwards to write a quadratic equation that will have solutions of x = 3 and x = -7.

11. Work backwards to write a quadratic equation that will have solutions of x = 12 and x = 2.

12. Work backwards to write a quadratic equation that will have solutions of x = -1/2 and x = 4. (Your equation must only have integer coefficients, meaning no fractions or decimals.)

13. Write a quadratic equation that will have a solution of only x = 0. Note: this means there will be a double solution of x = 0.

14. Write a quadratic equation that cannot be factored.

15. The product of two consecutive positive integers is 72. Find the integers.

16. The product of two consecutive negative integers is 10506. Write a quadratic equation that you could solve to find the integers.

17. Write a quadratic equation to find two consecutive odd natural numbers whose product is 63. Then find the numbers.

18. A tennis ball is launched straight upward with an initial velocity of 24.5 m/s from the edge of a cliff that is 117.6 meters above the ground. Which quadratic equation could be used to correctly determine when the ball will hit the ground: