2x^2+2x-3x-15
2x^2+(-1x)-15
1x^2-15 final answer
The accretionary wedge is like the accretionary prism and the definition of that is : *a mass of sedimentary material scraped off a region of oceanic crust during subduction and piled up at the edge of the overriding plate (source : dictionary)* and the formation is when two plates crash and one slides under the other one I believe and sand ad sediment go into the little open space between them that give you a wedge. Hope I helped.
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