# Math help!?

Estimate the area under the graph of

f(x)=2x3+3

from x=−1 to x=5, first using 6 approximating rectangles and right endpoints, and then improving your estimate using 12 approximating rectangles. Using midpoints!

6 rectangles ?

12 rectangles ?

f(x)=2x3+3

from x=−1 to x=5, first using 6 approximating rectangles and right endpoints, and then improving your estimate using 12 approximating rectangles. Using midpoints!

6 rectangles ?

12 rectangles ?

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