The graph of a quadratic function f(x) intersects the x-axis at -3 and 1. What is a possible equation for f(x)?

Which equation and solution can be used to solve this problem? thirteen less than a number is sixteen. 13-n=16: add 13 to both sides. the answer is 29. n+13=16: subtract 13 from both sides. the answer is 3. n+16=13 subtract 13 from both sides. the answer is 3. n-13=16: add 13 to both sides. the answer is 29.

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Simplify.7x + 3y - 2 + 6x + 1 + y squared 2 you! ; )