Algebra 2HardCircles & Lines ShareCircles & Lines · Hard problemWhat is the sum of all real numbers xxx satisfying (x2−4x)2−2(x2−4x)−15=0\left(x^2-4x\right)^2 - 2\left(x^2-4x\right) - 15 = 0(x2−4x)2−2(x2−4x)−15=0?A101010B888C161616D444E666Check Show answer Walk through it step by step Practice more like this Review this concept