Practice problem
Determine the remainder after dividing x−7x-7x−7 from 7x2+18x−207x^{2}+18x-207x2+18x−20. Express your answer in fractional form.
67x−7\dfrac{67}{x-7}x−767
449x−7\dfrac{449}{x-7}x−7449
489x−7\dfrac{489}{x-7}x−7489
67x+7\dfrac{67}{x+7}x+767
Type a concept, like “slope” or “photosynthesis”.