Final answer:
A quadratic equation can be factored if it is in the form x² + bx - 20 = 0, where b is an integer. Without the value of b, we cannot specify the exact factored form, but factors of -20 would be used to find possible pairs that could lead to the correct factorization.
Step-by-step explanation:
To understand what factored forms can satisfy the expression given, take note that the equation provided by the student seems to be incomplete or contains typos.
However, the standard factored form of a quadratic equation ax² + bx + c = 0 can be derived when the quadratic is factorizable over the integers.
The correct version should look like x² + bx - 20 = 0, where b and c are integers, and the quadratic can be factored if there are integers that multiply to -20 and add to b. Since -20 can be expressed as the product of the following pairs: (1, -20), (-1, 20), (2, -10), (-2, 10), (4, -5), and (-4, 5), we need to find the pair that sums up to b. Without the value of b, we cannot specify the exact factored form.