The output value of a factory was 500000 yuan the year before last, but it has risen to 720000 yuan this year. What is the average growth rate in the past two years? If the annual growth rate is x, then the equation () A. 50（1+x）=72B. 50（1+x）+50（1+x）2=72C. 50（1+x）2=72D. 50x2=72

Let the annual growth rate be X. according to the meaning of the question, 50 (1 + x) (1 + x) = 72, that is, 50 (1 + x) 2 = 72

For a company in our city, the growth rate of output value in the first year is p, and the average growth rate in the second year is X. what is the relationship between X and (P + Q)?

Please complete the key elements of the question. Only two relationships are provided in X / P / Q, but the relationship among the three is required. It is suspected that the question has not been fully entered, so it cannot be answered

The output value of a factory in March last year was 500000 yuan, which rose to 720000 yuan in May. What is the average monthly growth rate in these two months?

The output value in April is 50 (1 + x) and that in May is 50 (1 + x) (1 + x) = 50 (1 + x) 2 = 72. The solution is X1 = 20%, X2 = - 220% (rounding off). Answer: suppose the average monthly growth rate of these two months is 20%

The output value of a factory in January this year is 500000 yuan, and the output value in March reached 720000 yuan. If the average growth rate of output value in February and March is x, the equation can be formulated according to the problem

50(1+x)²=72
(1+x)²=1.44
1+x=1.2
x=1.2-1
x=0.2
x=20%

The output value of a factory was 500000 yuan the year before last, but it has risen to 720000 yuan this year. What is the average growth rate in the past two years? If the annual growth rate is x, then the equation () A. 50（1+x）=72B. 50（1+x）+50（1+x）2=72C. 50（1+x）2=72D. 50x2=72