Practice problem
Solve the quadratic equation 3x2−9x−54=03x^{2}-9x-54=03x2−9x−54=0.
x=3,−6x=3, -6x=3,−6
x=4,−7x=4, -7x=4,−7
x=−3,6x=-3, 6x=−3,6
x=−12,3x=-12, 3x=−12,3
Type a concept, like “slope” or “photosynthesis”.