Simplify the expression 5(x - 3)(x2 + 4x + 1). O 5x3 - 75x2 + 25x - 15
O 5x3 + 25x2 - 75x - 15
O 5x3 + x2 - 11x - 3
O 5x3 + 5x2 - 55x - 15

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“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .