Ricardo and Kim rowed their canoes from their base camp to a fishing camp. They rowed a distance of x miles upstream on one river, (3x2 - 9) miles downstream on another river, and (2x + 9) miles across a calm lake. Which expression is equivalent to the total distance, in miles, Ricardo and Kim rowed their canoes?

Question

anonymous · Answer

Please show me the steps! :)

anonymous · Answer

actually the 2 in 3x2 is and exponent

whpalmer4 · Answer

You have a bunch of things you'll add together:
first river: $x$
second river: $3x^2-9$
lake: $ 2x+9$

Can you write the sum of all of those components?