5 + [5 × (4 + 2)]
start with the inner most parentheses
5 + [5 × (6)]
then the next set of parentheses
then we can add
first reflected on the axis y=0 (x axis) and then translated by the vector (0,2)
i have attached a screenshot of the graphs : )
the red is y=x²
the blue is y=-(x²-2)
answer: it costs $45.5 for seven pounds of string beans.
first lets evaluate the parts:
7^8 = 5764801
7^7 = 823543
7^6 = 117649
adding and subtracting these 3 values as stated in the expression results in 5058907 which when divided by 43 is 117649.
while there is probably a faster way to do this, this does work.