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The area of the region between the graph y=3x^2+2x and the x axis from x=1 to x=3 is?
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integrate top curve minus bottom curve. the bottom curve is the x axis itself (y=0). the top curve is probably 3x^2 + 2x, so integral 3x^2 + 2x - 0
use power rule here for integrating x^n = n*x^n-1
what about the x=1 and x=3?
thats the upper and lower limits
so i plug that in and add them both or subtract?
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