Practice problem
Factor the quadratic expression −7x2−12x+4-7x^{2}-12x+4−7x2−12x+4.
−(7x−2)(x+2)-(7x-2)(x+2)−(7x−2)(x+2)
(7x−2)(x+2)(7x-2)(x+2)(7x−2)(x+2)
(2x−7)(x+2)(2x-7)(x+2)(2x−7)(x+2)
(x+2)(x−7)(x+2)(x-7)(x+2)(x−7)
Type a concept, like “slope” or “photosynthesis”.