Practice problem
Factor the quadratic x2−7x−18x^2-7x-18x2−7x−18.
(x+9)(x−2)(x+9) (x-2)(x+9)(x−2)
(x−6)(x+10)(x-6) (x+10)(x−6)(x+10)
(x−9)(x+2)(x-9) (x+2)(x−9)(x+2)
(x+2)(x−11)(x+2) (x-11)(x+2)(x−11)
Type a concept, like “slope” or “photosynthesis”.
